Home / 12,144.78-18,217.17-4,349.34

Finding the Fourth Proportional to 12,144.78, 18,217.17 and 4,349.34

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Solution

The fourth proportional to 12,144.78, 18,217.17 and 4,349.34 is: 6,524.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,144.78 : 18,217.17 = 4,349.34 : x
  2. Step 2: Convert to fraction form
    12,144.78/18,217.17 = 4,349.34/x
  3. Step 3: Cross multiply
    12,144.78x = 18,217.17 × 4,349.34
  4. Step 4: Simplify right side
    12,144.78x = 79,232,666.17
  5. Step 5: Solve for x
    x = 79,232,666.17/12,144.78
  6. Step 6: Final answer
    x = 6,524.01

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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.