Home / 18,717.68-25,818.60-11,996.36

Finding the Fourth Proportional to 18,717.68, 25,818.60 and 11,996.36

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Solution

The fourth proportional to 18,717.68, 25,818.60 and 11,996.36 is: 16,547.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,717.68 : 25,818.60 = 11,996.36 : x
  2. Step 2: Convert to fraction form
    18,717.68/25,818.60 = 11,996.36/x
  3. Step 3: Cross multiply
    18,717.68x = 25,818.60 × 11,996.36
  4. Step 4: Simplify right side
    18,717.68x = 309,729,220.30
  5. Step 5: Solve for x
    x = 309,729,220.30/18,717.68
  6. Step 6: Final answer
    x = 16,547.42

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.