Home / 9,102.08-12,560.74-5,123.21

Finding the Fourth Proportional to 9,102.08, 12,560.74 and 5,123.21

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Solution

The fourth proportional to 9,102.08, 12,560.74 and 5,123.21 is: 7,069.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,102.08 : 12,560.74 = 5,123.21 : x
  2. Step 2: Convert to fraction form
    9,102.08/12,560.74 = 5,123.21/x
  3. Step 3: Cross multiply
    9,102.08x = 12,560.74 × 5,123.21
  4. Step 4: Simplify right side
    9,102.08x = 64,351,233.16
  5. Step 5: Solve for x
    x = 64,351,233.16/9,102.08
  6. Step 6: Final answer
    x = 7,069.95

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Half scale
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Double scale
Find fourth proportional to 9,103.08, 12,562.12 and 5,124.21
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.