Home / 12,154.80-16,731.48-10,481.76

Finding the Fourth Proportional to 12,154.80, 16,731.48 and 10,481.76

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Solution

The fourth proportional to 12,154.80, 16,731.48 and 10,481.76 is: 14,428.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,154.80 : 16,731.48 = 10,481.76 : x
  2. Step 2: Convert to fraction form
    12,154.80/16,731.48 = 10,481.76/x
  3. Step 3: Cross multiply
    12,154.80x = 16,731.48 × 10,481.76
  4. Step 4: Simplify right side
    12,154.80x = 175,375,357.80
  5. Step 5: Solve for x
    x = 175,375,357.80/12,154.80
  6. Step 6: Final answer
    x = 14,428.49

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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.