Home / 14,253.76-21,380.64-6,460.75

Finding the Fourth Proportional to 14,253.76, 21,380.64 and 6,460.75

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Solution

The fourth proportional to 14,253.76, 21,380.64 and 6,460.75 is: 9,691.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,253.76 : 21,380.64 = 6,460.75 : x
  2. Step 2: Convert to fraction form
    14,253.76/21,380.64 = 6,460.75/x
  3. Step 3: Cross multiply
    14,253.76x = 21,380.64 × 6,460.75
  4. Step 4: Simplify right side
    14,253.76x = 138,134,969.88
  5. Step 5: Solve for x
    x = 138,134,969.88/14,253.76
  6. Step 6: Final answer
    x = 9,691.13

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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.