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Finding the Fourth Proportional to 18,282.52, 27,428.10 and 9,515.44

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Solution

The fourth proportional to 18,282.52, 27,428.10 and 9,515.44 is: 14,275.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,282.52 : 27,428.10 = 9,515.44 : x
  2. Step 2: Convert to fraction form
    18,282.52/27,428.10 = 9,515.44/x
  3. Step 3: Cross multiply
    18,282.52x = 27,428.10 × 9,515.44
  4. Step 4: Simplify right side
    18,282.52x = 260,990,439.86
  5. Step 5: Solve for x
    x = 260,990,439.86/18,282.52
  6. Step 6: Final answer
    x = 14,275.41

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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.