Home / 12,381.38-18,572.06-3,616.37

Finding the Fourth Proportional to 12,381.38, 18,572.06 and 3,616.37

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Solution

The fourth proportional to 12,381.38, 18,572.06 and 3,616.37 is: 5,424.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,381.38 : 18,572.06 = 3,616.37 : x
  2. Step 2: Convert to fraction form
    12,381.38/18,572.06 = 3,616.37/x
  3. Step 3: Cross multiply
    12,381.38x = 18,572.06 × 3,616.37
  4. Step 4: Simplify right side
    12,381.38x = 67,163,356.80
  5. Step 5: Solve for x
    x = 67,163,356.80/12,381.38
  6. Step 6: Final answer
    x = 5,424.55

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Similar ratio
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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.