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Finding the Fourth Proportional to 15,318.68, 22,960.79 and 7,801.15

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Solution

The fourth proportional to 15,318.68, 22,960.79 and 7,801.15 is: 11,692.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,318.68 : 22,960.79 = 7,801.15 : x
  2. Step 2: Convert to fraction form
    15,318.68/22,960.79 = 7,801.15/x
  3. Step 3: Cross multiply
    15,318.68x = 22,960.79 × 7,801.15
  4. Step 4: Simplify right side
    15,318.68x = 179,120,566.91
  5. Step 5: Solve for x
    x = 179,120,566.91/15,318.68
  6. Step 6: Final answer
    x = 11,692.95

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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.