Home / 15,591.07-21,516.00-8,517.95

Finding the Fourth Proportional to 15,591.07, 21,516.00 and 8,517.95

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Solution

The fourth proportional to 15,591.07, 21,516.00 and 8,517.95 is: 11,754.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,591.07 : 21,516.00 = 8,517.95 : x
  2. Step 2: Convert to fraction form
    15,591.07/21,516.00 = 8,517.95/x
  3. Step 3: Cross multiply
    15,591.07x = 21,516.00 × 8,517.95
  4. Step 4: Simplify right side
    15,591.07x = 183,272,169.61
  5. Step 5: Solve for x
    x = 183,272,169.61/15,591.07
  6. Step 6: Final answer
    x = 11,754.94

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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.