Home / 16,489.26-22,759.31-9,419.78

Finding the Fourth Proportional to 16,489.26, 22,759.31 and 9,419.78

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Solution

The fourth proportional to 16,489.26, 22,759.31 and 9,419.78 is: 13,001.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,489.26 : 22,759.31 = 9,419.78 : x
  2. Step 2: Convert to fraction form
    16,489.26/22,759.31 = 9,419.78/x
  3. Step 3: Cross multiply
    16,489.26x = 22,759.31 × 9,419.78
  4. Step 4: Simplify right side
    16,489.26x = 214,387,773.60
  5. Step 5: Solve for x
    x = 214,387,773.60/16,489.26
  6. Step 6: Final answer
    x = 13,001.66

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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.