Home / 8,949.60-12,351.36-5,173.12

Finding the Fourth Proportional to 8,949.60, 12,351.36 and 5,173.12

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Solution

The fourth proportional to 8,949.60, 12,351.36 and 5,173.12 is: 7,139.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,949.60 : 12,351.36 = 5,173.12 : x
  2. Step 2: Convert to fraction form
    8,949.60/12,351.36 = 5,173.12/x
  3. Step 3: Cross multiply
    8,949.60x = 12,351.36 × 5,173.12
  4. Step 4: Simplify right side
    8,949.60x = 63,895,067.44
  5. Step 5: Solve for x
    x = 63,895,067.44/8,949.60
  6. Step 6: Final answer
    x = 7,139.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.