Home / 11,382.26-15,715.17-8,724.98

Finding the Fourth Proportional to 11,382.26, 15,715.17 and 8,724.98

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Solution

The fourth proportional to 11,382.26, 15,715.17 and 8,724.98 is: 12,046.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,382.26 : 15,715.17 = 8,724.98 : x
  2. Step 2: Convert to fraction form
    11,382.26/15,715.17 = 8,724.98/x
  3. Step 3: Cross multiply
    11,382.26x = 15,715.17 × 8,724.98
  4. Step 4: Simplify right side
    11,382.26x = 137,114,543.95
  5. Step 5: Solve for x
    x = 137,114,543.95/11,382.26
  6. Step 6: Final answer
    x = 12,046.34

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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.