Home / 15,006.38-20,708.97-8,291.84

Finding the Fourth Proportional to 15,006.38, 20,708.97 and 8,291.84

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Solution

The fourth proportional to 15,006.38, 20,708.97 and 8,291.84 is: 11,442.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,006.38 : 20,708.97 = 8,291.84 : x
  2. Step 2: Convert to fraction form
    15,006.38/20,708.97 = 8,291.84/x
  3. Step 3: Cross multiply
    15,006.38x = 20,708.97 × 8,291.84
  4. Step 4: Simplify right side
    15,006.38x = 171,715,331.17
  5. Step 5: Solve for x
    x = 171,715,331.17/15,006.38
  6. Step 6: Final answer
    x = 11,442.82

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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.