Home / 15,406.56-21,261.03-8,332.98

Finding the Fourth Proportional to 15,406.56, 21,261.03 and 8,332.98

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Solution

The fourth proportional to 15,406.56, 21,261.03 and 8,332.98 is: 11,499.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,406.56 : 21,261.03 = 8,332.98 : x
  2. Step 2: Convert to fraction form
    15,406.56/21,261.03 = 8,332.98/x
  3. Step 3: Cross multiply
    15,406.56x = 21,261.03 × 8,332.98
  4. Step 4: Simplify right side
    15,406.56x = 177,167,737.77
  5. Step 5: Solve for x
    x = 177,167,737.77/15,406.56
  6. Step 6: Final answer
    x = 11,499.50

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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.