Home / 12,325.38-18,487.79-8,366.76

Finding the Fourth Proportional to 12,325.38, 18,487.79 and 8,366.76

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Solution

The fourth proportional to 12,325.38, 18,487.79 and 8,366.76 is: 12,549.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,325.38 : 18,487.79 = 8,366.76 : x
  2. Step 2: Convert to fraction form
    12,325.38/18,487.79 = 8,366.76/x
  3. Step 3: Cross multiply
    12,325.38x = 18,487.79 × 8,366.76
  4. Step 4: Simplify right side
    12,325.38x = 154,682,901.86
  5. Step 5: Solve for x
    x = 154,682,901.86/12,325.38
  6. Step 6: Final answer
    x = 12,549.95

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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.