Home / 8,371.29-11,551.12-5,391.13

Finding the Fourth Proportional to 8,371.29, 11,551.12 and 5,391.13

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Solution

The fourth proportional to 8,371.29, 11,551.12 and 5,391.13 is: 7,438.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,371.29 : 11,551.12 = 5,391.13 : x
  2. Step 2: Convert to fraction form
    8,371.29/11,551.12 = 5,391.13/x
  3. Step 3: Cross multiply
    8,371.29x = 11,551.12 × 5,391.13
  4. Step 4: Simplify right side
    8,371.29x = 62,273,589.57
  5. Step 5: Solve for x
    x = 62,273,589.57/8,371.29
  6. Step 6: Final answer
    x = 7,438.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.