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Finding the Fourth Proportional to 18,264.20, 27,425.10 and 10,488.20

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Solution

The fourth proportional to 18,264.20, 27,425.10 and 10,488.20 is: 15,748.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,264.20 : 27,425.10 = 10,488.20 : x
  2. Step 2: Convert to fraction form
    18,264.20/27,425.10 = 10,488.20/x
  3. Step 3: Cross multiply
    18,264.20x = 27,425.10 × 10,488.20
  4. Step 4: Simplify right side
    18,264.20x = 287,639,933.82
  5. Step 5: Solve for x
    x = 287,639,933.82/18,264.20
  6. Step 6: Final answer
    x = 15,748.84

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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.