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Finding the Fourth Proportional to 18,275.52, 27,376.68 and 8,401.32

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Solution

The fourth proportional to 18,275.52, 27,376.68 and 8,401.32 is: 12,585.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,275.52 : 27,376.68 = 8,401.32 : x
  2. Step 2: Convert to fraction form
    18,275.52/27,376.68 = 8,401.32/x
  3. Step 3: Cross multiply
    18,275.52x = 27,376.68 × 8,401.32
  4. Step 4: Simplify right side
    18,275.52x = 230,000,249.22
  5. Step 5: Solve for x
    x = 230,000,249.22/18,275.52
  6. Step 6: Final answer
    x = 12,585.15

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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.