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Finding the Fourth Proportional to 12,282.87, 18,424.15 and 7,353.88

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Solution

The fourth proportional to 12,282.87, 18,424.15 and 7,353.88 is: 11,030.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,282.87 : 18,424.15 = 7,353.88 : x
  2. Step 2: Convert to fraction form
    12,282.87/18,424.15 = 7,353.88/x
  3. Step 3: Cross multiply
    12,282.87x = 18,424.15 × 7,353.88
  4. Step 4: Simplify right side
    12,282.87x = 135,488,988.20
  5. Step 5: Solve for x
    x = 135,488,988.20/12,282.87
  6. Step 6: Final answer
    x = 11,030.73

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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.