Home / 8,976.26-12,385.36-5,199.20

Finding the Fourth Proportional to 8,976.26, 12,385.36 and 5,199.20

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Solution

The fourth proportional to 8,976.26, 12,385.36 and 5,199.20 is: 7,173.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,976.26 : 12,385.36 = 5,199.20 : x
  2. Step 2: Convert to fraction form
    8,976.26/12,385.36 = 5,199.20/x
  3. Step 3: Cross multiply
    8,976.26x = 12,385.36 × 5,199.20
  4. Step 4: Simplify right side
    8,976.26x = 64,393,888.79
  5. Step 5: Solve for x
    x = 64,393,888.79/8,976.26
  6. Step 6: Final answer
    x = 7,173.80

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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.