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Finding the Fourth Proportional to 14,785.56, 20,404.08 and 8,497.92

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Solution

The fourth proportional to 14,785.56, 20,404.08 and 8,497.92 is: 11,727.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,785.56 : 20,404.08 = 8,497.92 : x
  2. Step 2: Convert to fraction form
    14,785.56/20,404.08 = 8,497.92/x
  3. Step 3: Cross multiply
    14,785.56x = 20,404.08 × 8,497.92
  4. Step 4: Simplify right side
    14,785.56x = 173,392,239.51
  5. Step 5: Solve for x
    x = 173,392,239.51/14,785.56
  6. Step 6: Final answer
    x = 11,727.13

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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.