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Finding the Fourth Proportional to 12,042.60, 18,063.90 and 10,220.10

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Solution

The fourth proportional to 12,042.60, 18,063.90 and 10,220.10 is: 15,330.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,042.60 : 18,063.90 = 10,220.10 : x
  2. Step 2: Convert to fraction form
    12,042.60/18,063.90 = 10,220.10/x
  3. Step 3: Cross multiply
    12,042.60x = 18,063.90 × 10,220.10
  4. Step 4: Simplify right side
    12,042.60x = 184,614,864.39
  5. Step 5: Solve for x
    x = 184,614,864.39/12,042.60
  6. Step 6: Final answer
    x = 15,330.15

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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.