Home / 8,629.60-12,921.92-5,993.20

Finding the Fourth Proportional to 8,629.60, 12,921.92 and 5,993.20

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Solution

The fourth proportional to 8,629.60, 12,921.92 and 5,993.20 is: 8,974.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,629.60 : 12,921.92 = 5,993.20 : x
  2. Step 2: Convert to fraction form
    8,629.60/12,921.92 = 5,993.20/x
  3. Step 3: Cross multiply
    8,629.60x = 12,921.92 × 5,993.20
  4. Step 4: Simplify right side
    8,629.60x = 77,443,650.94
  5. Step 5: Solve for x
    x = 77,443,650.94/8,629.60
  6. Step 6: Final answer
    x = 8,974.19

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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.