Home / 15,135.38-22,702.15-5,645.87

Finding the Fourth Proportional to 15,135.38, 22,702.15 and 5,645.87

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Solution

The fourth proportional to 15,135.38, 22,702.15 and 5,645.87 is: 8,468.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,135.38 : 22,702.15 = 5,645.87 : x
  2. Step 2: Convert to fraction form
    15,135.38/22,702.15 = 5,645.87/x
  3. Step 3: Cross multiply
    15,135.38x = 22,702.15 × 5,645.87
  4. Step 4: Simplify right side
    15,135.38x = 128,173,344.98
  5. Step 5: Solve for x
    x = 128,173,344.98/15,135.38
  6. Step 6: Final answer
    x = 8,468.46

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1.5x scale

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.