Home / 8,427.68-11,630.28-4,650.92

Finding the Fourth Proportional to 8,427.68, 11,630.28 and 4,650.92

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Solution

The fourth proportional to 8,427.68, 11,630.28 and 4,650.92 is: 6,418.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,427.68 : 11,630.28 = 4,650.92 : x
  2. Step 2: Convert to fraction form
    8,427.68/11,630.28 = 4,650.92/x
  3. Step 3: Cross multiply
    8,427.68x = 11,630.28 × 4,650.92
  4. Step 4: Simplify right side
    8,427.68x = 54,091,501.86
  5. Step 5: Solve for x
    x = 54,091,501.86/8,427.68
  6. Step 6: Final answer
    x = 6,418.31

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.