Home / 14,461.20-21,691.80-8,223.12

Finding the Fourth Proportional to 14,461.20, 21,691.80 and 8,223.12

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Solution

The fourth proportional to 14,461.20, 21,691.80 and 8,223.12 is: 12,334.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,461.20 : 21,691.80 = 8,223.12 : x
  2. Step 2: Convert to fraction form
    14,461.20/21,691.80 = 8,223.12/x
  3. Step 3: Cross multiply
    14,461.20x = 21,691.80 × 8,223.12
  4. Step 4: Simplify right side
    14,461.20x = 178,374,274.42
  5. Step 5: Solve for x
    x = 178,374,274.42/14,461.20
  6. Step 6: Final answer
    x = 12,334.68

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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.