Home / 6,240.56-9,358.96-5,142.20

Finding the Fourth Proportional to 6,240.56, 9,358.96 and 5,142.20

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Solution

The fourth proportional to 6,240.56, 9,358.96 and 5,142.20 is: 7,711.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,240.56 : 9,358.96 = 5,142.20 : x
  2. Step 2: Convert to fraction form
    6,240.56/9,358.96 = 5,142.20/x
  3. Step 3: Cross multiply
    6,240.56x = 9,358.96 × 5,142.20
  4. Step 4: Simplify right side
    6,240.56x = 48,125,644.11
  5. Step 5: Solve for x
    x = 48,125,644.11/6,240.56
  6. Step 6: Final answer
    x = 7,711.75

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Half scale
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Double scale
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Similar ratio
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1.5x scale

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.