Home / 14,785.13-20,404.31-8,497.91

Finding the Fourth Proportional to 14,785.13, 20,404.31 and 8,497.91

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Solution

The fourth proportional to 14,785.13, 20,404.31 and 8,497.91 is: 11,727.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,785.13 : 20,404.31 = 8,497.91 : x
  2. Step 2: Convert to fraction form
    14,785.13/20,404.31 = 8,497.91/x
  3. Step 3: Cross multiply
    14,785.13x = 20,404.31 × 8,497.91
  4. Step 4: Simplify right side
    14,785.13x = 173,393,845.48
  5. Step 5: Solve for x
    x = 173,393,845.48/14,785.13
  6. Step 6: Final answer
    x = 11,727.59

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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.