Home / 10,449.28-15,679.29-6,941.71

Finding the Fourth Proportional to 10,449.28, 15,679.29 and 6,941.71

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Solution

The fourth proportional to 10,449.28, 15,679.29 and 6,941.71 is: 10,416.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,449.28 : 15,679.29 = 6,941.71 : x
  2. Step 2: Convert to fraction form
    10,449.28/15,679.29 = 6,941.71/x
  3. Step 3: Cross multiply
    10,449.28x = 15,679.29 × 6,941.71
  4. Step 4: Simplify right side
    10,449.28x = 108,841,002.57
  5. Step 5: Solve for x
    x = 108,841,002.57/10,449.28
  6. Step 6: Final answer
    x = 10,416.13

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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.