Home / 12,539.70-18,809.85-5,966.55

Finding the Fourth Proportional to 12,539.70, 18,809.85 and 5,966.55

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Solution

The fourth proportional to 12,539.70, 18,809.85 and 5,966.55 is: 8,949.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,539.70 : 18,809.85 = 5,966.55 : x
  2. Step 2: Convert to fraction form
    12,539.70/18,809.85 = 5,966.55/x
  3. Step 3: Cross multiply
    12,539.70x = 18,809.85 × 5,966.55
  4. Step 4: Simplify right side
    12,539.70x = 112,229,910.52
  5. Step 5: Solve for x
    x = 112,229,910.52/12,539.70
  6. Step 6: Final answer
    x = 8,949.97

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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.