Home / 16,781.64-25,170.72-5,688.04

Finding the Fourth Proportional to 16,781.64, 25,170.72 and 5,688.04

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Solution

The fourth proportional to 16,781.64, 25,170.72 and 5,688.04 is: 8,531.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,781.64 : 25,170.72 = 5,688.04 : x
  2. Step 2: Convert to fraction form
    16,781.64/25,170.72 = 5,688.04/x
  3. Step 3: Cross multiply
    16,781.64x = 25,170.72 × 5,688.04
  4. Step 4: Simplify right side
    16,781.64x = 143,172,062.19
  5. Step 5: Solve for x
    x = 143,172,062.19/16,781.64
  6. Step 6: Final answer
    x = 8,531.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.