Home / 8,976.24-12,387.60-5,199.54

Finding the Fourth Proportional to 8,976.24, 12,387.60 and 5,199.54

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Solution

The fourth proportional to 8,976.24, 12,387.60 and 5,199.54 is: 7,175.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,976.24 : 12,387.60 = 5,199.54 : x
  2. Step 2: Convert to fraction form
    8,976.24/12,387.60 = 5,199.54/x
  3. Step 3: Cross multiply
    8,976.24x = 12,387.60 × 5,199.54
  4. Step 4: Simplify right side
    8,976.24x = 64,409,821.70
  5. Step 5: Solve for x
    x = 64,409,821.70/8,976.24
  6. Step 6: Final answer
    x = 7,175.59

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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.