Home / 12,387.43-18,581.76-4,064.08

Finding the Fourth Proportional to 12,387.43, 18,581.76 and 4,064.08

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Solution

The fourth proportional to 12,387.43, 18,581.76 and 4,064.08 is: 6,096.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,387.43 : 18,581.76 = 4,064.08 : x
  2. Step 2: Convert to fraction form
    12,387.43/18,581.76 = 4,064.08/x
  3. Step 3: Cross multiply
    12,387.43x = 18,581.76 × 4,064.08
  4. Step 4: Simplify right side
    12,387.43x = 75,517,759.18
  5. Step 5: Solve for x
    x = 75,517,759.18/12,387.43
  6. Step 6: Final answer
    x = 6,096.32

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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.