Home / 6,642.72-9,158.65-4,248.76

Finding the Fourth Proportional to 6,642.72, 9,158.65 and 4,248.76

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Solution

The fourth proportional to 6,642.72, 9,158.65 and 4,248.76 is: 5,857.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,642.72 : 9,158.65 = 4,248.76 : x
  2. Step 2: Convert to fraction form
    6,642.72/9,158.65 = 4,248.76/x
  3. Step 3: Cross multiply
    6,642.72x = 9,158.65 × 4,248.76
  4. Step 4: Simplify right side
    6,642.72x = 38,912,905.76
  5. Step 5: Solve for x
    x = 38,912,905.76/6,642.72
  6. Step 6: Final answer
    x = 5,857.97

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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.