Home / 12,476.92-18,719.28-3,711.88

Finding the Fourth Proportional to 12,476.92, 18,719.28 and 3,711.88

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Solution

The fourth proportional to 12,476.92, 18,719.28 and 3,711.88 is: 5,568.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,476.92 : 18,719.28 = 3,711.88 : x
  2. Step 2: Convert to fraction form
    12,476.92/18,719.28 = 3,711.88/x
  3. Step 3: Cross multiply
    12,476.92x = 18,719.28 × 3,711.88
  4. Step 4: Simplify right side
    12,476.92x = 69,483,721.05
  5. Step 5: Solve for x
    x = 69,483,721.05/12,476.92
  6. Step 6: Final answer
    x = 5,568.98

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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.