Home / 7,147.38-9,863.75-4,314.71

Finding the Fourth Proportional to 7,147.38, 9,863.75 and 4,314.71

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Solution

The fourth proportional to 7,147.38, 9,863.75 and 4,314.71 is: 5,954.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,147.38 : 9,863.75 = 4,314.71 : x
  2. Step 2: Convert to fraction form
    7,147.38/9,863.75 = 4,314.71/x
  3. Step 3: Cross multiply
    7,147.38x = 9,863.75 × 4,314.71
  4. Step 4: Simplify right side
    7,147.38x = 42,559,149.87
  5. Step 5: Solve for x
    x = 42,559,149.87/7,147.38
  6. Step 6: Final answer
    x = 5,954.51

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Half scale
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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.