Home / 10,280.52-15,424.83-5,082.75

Finding the Fourth Proportional to 10,280.52, 15,424.83 and 5,082.75

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Solution

The fourth proportional to 10,280.52, 15,424.83 and 5,082.75 is: 7,626.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,280.52 : 15,424.83 = 5,082.75 : x
  2. Step 2: Convert to fraction form
    10,280.52/15,424.83 = 5,082.75/x
  3. Step 3: Cross multiply
    10,280.52x = 15,424.83 × 5,082.75
  4. Step 4: Simplify right side
    10,280.52x = 78,400,554.68
  5. Step 5: Solve for x
    x = 78,400,554.68/10,280.52
  6. Step 6: Final answer
    x = 7,626.13

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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.