Home / 15,338.14-21,167.38-8,625.88

Finding the Fourth Proportional to 15,338.14, 21,167.38 and 8,625.88

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Solution

The fourth proportional to 15,338.14, 21,167.38 and 8,625.88 is: 11,904.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,338.14 : 21,167.38 = 8,625.88 : x
  2. Step 2: Convert to fraction form
    15,338.14/21,167.38 = 8,625.88/x
  3. Step 3: Cross multiply
    15,338.14x = 21,167.38 × 8,625.88
  4. Step 4: Simplify right side
    15,338.14x = 182,587,279.79
  5. Step 5: Solve for x
    x = 182,587,279.79/15,338.14
  6. Step 6: Final answer
    x = 11,904.13

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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.