Home / 15,536.46-21,439.74-8,462.76

Finding the Fourth Proportional to 15,536.46, 21,439.74 and 8,462.76

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Solution

The fourth proportional to 15,536.46, 21,439.74 and 8,462.76 is: 11,678.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,536.46 : 21,439.74 = 8,462.76 : x
  2. Step 2: Convert to fraction form
    15,536.46/21,439.74 = 8,462.76/x
  3. Step 3: Cross multiply
    15,536.46x = 21,439.74 × 8,462.76
  4. Step 4: Simplify right side
    15,536.46x = 181,439,374.08
  5. Step 5: Solve for x
    x = 181,439,374.08/15,536.46
  6. Step 6: Final answer
    x = 11,678.30

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Find fourth proportional to 7,768.23, 10,719.87 and 4,231.38
Half scale
Find fourth proportional to 31,072.92, 42,879.48 and 16,925.52
Double scale
Find fourth proportional to 15,537.46, 21,441.12 and 8,463.76
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.