Home / 12,255.52-18,366.88-4,456.96

Finding the Fourth Proportional to 12,255.52, 18,366.88 and 4,456.96

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Solution

The fourth proportional to 12,255.52, 18,366.88 and 4,456.96 is: 6,679.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,255.52 : 18,366.88 = 4,456.96 : x
  2. Step 2: Convert to fraction form
    12,255.52/18,366.88 = 4,456.96/x
  3. Step 3: Cross multiply
    12,255.52x = 18,366.88 × 4,456.96
  4. Step 4: Simplify right side
    12,255.52x = 81,860,449.48
  5. Step 5: Solve for x
    x = 81,860,449.48/12,255.52
  6. Step 6: Final answer
    x = 6,679.48

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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.