Home / 13,949.78-20,922.36-4,589.92

Finding the Fourth Proportional to 13,949.78, 20,922.36 and 4,589.92

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Solution

The fourth proportional to 13,949.78, 20,922.36 and 4,589.92 is: 6,884.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,949.78 : 20,922.36 = 4,589.92 : x
  2. Step 2: Convert to fraction form
    13,949.78/20,922.36 = 4,589.92/x
  3. Step 3: Cross multiply
    13,949.78x = 20,922.36 × 4,589.92
  4. Step 4: Simplify right side
    13,949.78x = 96,031,949.67
  5. Step 5: Solve for x
    x = 96,031,949.67/13,949.78
  6. Step 6: Final answer
    x = 6,884.12

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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.