Home / 7,515.38-10,371.24-4,158.34

Finding the Fourth Proportional to 7,515.38, 10,371.24 and 4,158.34

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Solution

The fourth proportional to 7,515.38, 10,371.24 and 4,158.34 is: 5,738.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,515.38 : 10,371.24 = 4,158.34 : x
  2. Step 2: Convert to fraction form
    7,515.38/10,371.24 = 4,158.34/x
  3. Step 3: Cross multiply
    7,515.38x = 10,371.24 × 4,158.34
  4. Step 4: Simplify right side
    7,515.38x = 43,127,116.21
  5. Step 5: Solve for x
    x = 43,127,116.21/7,515.38
  6. Step 6: Final answer
    x = 5,738.51

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Half scale
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Double 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.