Home / 10,742.62-16,113.29-6,387.79

Finding the Fourth Proportional to 10,742.62, 16,113.29 and 6,387.79

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Solution

The fourth proportional to 10,742.62, 16,113.29 and 6,387.79 is: 9,581.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,742.62 : 16,113.29 = 6,387.79 : x
  2. Step 2: Convert to fraction form
    10,742.62/16,113.29 = 6,387.79/x
  3. Step 3: Cross multiply
    10,742.62x = 16,113.29 × 6,387.79
  4. Step 4: Simplify right side
    10,742.62x = 102,928,312.73
  5. Step 5: Solve for x
    x = 102,928,312.73/10,742.62
  6. Step 6: Final answer
    x = 9,581.30

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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.