Home / 12,481.17-18,721.40-3,247.17

Finding the Fourth Proportional to 12,481.17, 18,721.40 and 3,247.17

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Solution

The fourth proportional to 12,481.17, 18,721.40 and 3,247.17 is: 4,870.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481.17 : 18,721.40 = 3,247.17 : x
  2. Step 2: Convert to fraction form
    12,481.17/18,721.40 = 3,247.17/x
  3. Step 3: Cross multiply
    12,481.17x = 18,721.40 × 3,247.17
  4. Step 4: Simplify right side
    12,481.17x = 60,791,568.44
  5. Step 5: Solve for x
    x = 60,791,568.44/12,481.17
  6. Step 6: Final answer
    x = 4,870.66

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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.