Home / 12,180.11-18,270.17-2,946.11

Finding the Fourth Proportional to 12,180.11, 18,270.17 and 2,946.11

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Solution

The fourth proportional to 12,180.11, 18,270.17 and 2,946.11 is: 4,419.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,180.11 : 18,270.17 = 2,946.11 : x
  2. Step 2: Convert to fraction form
    12,180.11/18,270.17 = 2,946.11/x
  3. Step 3: Cross multiply
    12,180.11x = 18,270.17 × 2,946.11
  4. Step 4: Simplify right side
    12,180.11x = 53,825,824.46
  5. Step 5: Solve for x
    x = 53,825,824.46/12,180.11
  6. Step 6: Final answer
    x = 4,419.16

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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.