Home / 12,642.32-18,967.26-3,757.95

Finding the Fourth Proportional to 12,642.32, 18,967.26 and 3,757.95

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Solution

The fourth proportional to 12,642.32, 18,967.26 and 3,757.95 is: 5,638.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,642.32 : 18,967.26 = 3,757.95 : x
  2. Step 2: Convert to fraction form
    12,642.32/18,967.26 = 3,757.95/x
  3. Step 3: Cross multiply
    12,642.32x = 18,967.26 × 3,757.95
  4. Step 4: Simplify right side
    12,642.32x = 71,278,014.72
  5. Step 5: Solve for x
    x = 71,278,014.72/12,642.32
  6. Step 6: Final answer
    x = 5,638.05

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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.