Home / 10,432.41-14,388.34-9,170.78

Finding the Fourth Proportional to 10,432.41, 14,388.34 and 9,170.78

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Solution

The fourth proportional to 10,432.41, 14,388.34 and 9,170.78 is: 12,648.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,432.41 : 14,388.34 = 9,170.78 : x
  2. Step 2: Convert to fraction form
    10,432.41/14,388.34 = 9,170.78/x
  3. Step 3: Cross multiply
    10,432.41x = 14,388.34 × 9,170.78
  4. Step 4: Simplify right side
    10,432.41x = 131,952,182.91
  5. Step 5: Solve for x
    x = 131,952,182.91/10,432.41
  6. Step 6: Final answer
    x = 12,648.30

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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.