Home / 12,481.28-18,731.14-5,907.46

Finding the Fourth Proportional to 12,481.28, 18,731.14 and 5,907.46

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Solution

The fourth proportional to 12,481.28, 18,731.14 and 5,907.46 is: 8,865.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481.28 : 18,731.14 = 5,907.46 : x
  2. Step 2: Convert to fraction form
    12,481.28/18,731.14 = 5,907.46/x
  3. Step 3: Cross multiply
    12,481.28x = 18,731.14 × 5,907.46
  4. Step 4: Simplify right side
    12,481.28x = 110,653,528.76
  5. Step 5: Solve for x
    x = 110,653,528.76/12,481.28
  6. Step 6: Final answer
    x = 8,865.56

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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.