Home / 12,482.82-18,724.32-3,717.90

Finding the Fourth Proportional to 12,482.82, 18,724.32 and 3,717.90

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Solution

The fourth proportional to 12,482.82, 18,724.32 and 3,717.90 is: 5,576.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,482.82 : 18,724.32 = 3,717.90 : x
  2. Step 2: Convert to fraction form
    12,482.82/18,724.32 = 3,717.90/x
  3. Step 3: Cross multiply
    12,482.82x = 18,724.32 × 3,717.90
  4. Step 4: Simplify right side
    12,482.82x = 69,615,149.33
  5. Step 5: Solve for x
    x = 69,615,149.33/12,482.82
  6. Step 6: Final answer
    x = 5,576.88

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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.