Home / 10,722.14-16,082.40-2,931.56

Finding the Fourth Proportional to 10,722.14, 16,082.40 and 2,931.56

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Solution

The fourth proportional to 10,722.14, 16,082.40 and 2,931.56 is: 4,397.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,722.14 : 16,082.40 = 2,931.56 : x
  2. Step 2: Convert to fraction form
    10,722.14/16,082.40 = 2,931.56/x
  3. Step 3: Cross multiply
    10,722.14x = 16,082.40 × 2,931.56
  4. Step 4: Simplify right side
    10,722.14x = 47,146,520.54
  5. Step 5: Solve for x
    x = 47,146,520.54/10,722.14
  6. Step 6: Final answer
    x = 4,397.12

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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.