Home / 8,432.96-12,649.44-2,886.72

Finding the Fourth Proportional to 8,432.96, 12,649.44 and 2,886.72

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Solution

The fourth proportional to 8,432.96, 12,649.44 and 2,886.72 is: 4,330.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,432.96 : 12,649.44 = 2,886.72 : x
  2. Step 2: Convert to fraction form
    8,432.96/12,649.44 = 2,886.72/x
  3. Step 3: Cross multiply
    8,432.96x = 12,649.44 × 2,886.72
  4. Step 4: Simplify right side
    8,432.96x = 36,515,391.44
  5. Step 5: Solve for x
    x = 36,515,391.44/8,432.96
  6. Step 6: Final answer
    x = 4,330.08

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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.