Home / 12,247.71-18,379.74-4,456.52

Finding the Fourth Proportional to 12,247.71, 18,379.74 and 4,456.52

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Solution

The fourth proportional to 12,247.71, 18,379.74 and 4,456.52 is: 6,687.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,247.71 : 18,379.74 = 4,456.52 : x
  2. Step 2: Convert to fraction form
    12,247.71/18,379.74 = 4,456.52/x
  3. Step 3: Cross multiply
    12,247.71x = 18,379.74 × 4,456.52
  4. Step 4: Simplify right side
    12,247.71x = 81,909,672.64
  5. Step 5: Solve for x
    x = 81,909,672.64/12,247.71
  6. Step 6: Final answer
    x = 6,687.76

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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.