Home / 12,237.76-18,375.36-10,789.12

Finding the Fourth Proportional to 12,237.76, 18,375.36 and 10,789.12

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Solution

The fourth proportional to 12,237.76, 18,375.36 and 10,789.12 is: 16,200.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,237.76 : 18,375.36 = 10,789.12 : x
  2. Step 2: Convert to fraction form
    12,237.76/18,375.36 = 10,789.12/x
  3. Step 3: Cross multiply
    12,237.76x = 18,375.36 × 10,789.12
  4. Step 4: Simplify right side
    12,237.76x = 198,253,964.08
  5. Step 5: Solve for x
    x = 198,253,964.08/12,237.76
  6. Step 6: Final answer
    x = 16,200.18

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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.