Home / 15,115.12-22,650-11,813.56

Finding the Fourth Proportional to 15,115.12, 22,650 and 11,813.56

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Solution

The fourth proportional to 15,115.12, 22,650 and 11,813.56 is: 17,702.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,115.12 : 22,650 = 11,813.56 : x
  2. Step 2: Convert to fraction form
    15,115.12/22,650 = 11,813.56/x
  3. Step 3: Cross multiply
    15,115.12x = 22,650 × 11,813.56
  4. Step 4: Simplify right side
    15,115.12x = 267,577,134
  5. Step 5: Solve for x
    x = 267,577,134/15,115.12
  6. Step 6: Final answer
    x = 17,702.61

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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.