Home / 13,949.47-20,921.90-4,589.61

Finding the Fourth Proportional to 13,949.47, 20,921.90 and 4,589.61

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Solution

The fourth proportional to 13,949.47, 20,921.90 and 4,589.61 is: 6,883.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,949.47 : 20,921.90 = 4,589.61 : x
  2. Step 2: Convert to fraction form
    13,949.47/20,921.90 = 4,589.61/x
  3. Step 3: Cross multiply
    13,949.47x = 20,921.90 × 4,589.61
  4. Step 4: Simplify right side
    13,949.47x = 96,023,260.05
  5. Step 5: Solve for x
    x = 96,023,260.05/13,949.47
  6. Step 6: Final answer
    x = 6,883.65

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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.