Home / 15,881.13-21,917.25-9,167.04

Finding the Fourth Proportional to 15,881.13, 21,917.25 and 9,167.04

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Solution

The fourth proportional to 15,881.13, 21,917.25 and 9,167.04 is: 12,651.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,881.13 : 21,917.25 = 9,167.04 : x
  2. Step 2: Convert to fraction form
    15,881.13/21,917.25 = 9,167.04/x
  3. Step 3: Cross multiply
    15,881.13x = 21,917.25 × 9,167.04
  4. Step 4: Simplify right side
    15,881.13x = 200,916,307.44
  5. Step 5: Solve for x
    x = 200,916,307.44/15,881.13
  6. Step 6: Final answer
    x = 12,651.26

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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.