Home / 8,995.20-12,387.84-7,727.04

Finding the Fourth Proportional to 8,995.20, 12,387.84 and 7,727.04

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Solution

The fourth proportional to 8,995.20, 12,387.84 and 7,727.04 is: 10,641.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,995.20 : 12,387.84 = 7,727.04 : x
  2. Step 2: Convert to fraction form
    8,995.20/12,387.84 = 7,727.04/x
  3. Step 3: Cross multiply
    8,995.20x = 12,387.84 × 7,727.04
  4. Step 4: Simplify right side
    8,995.20x = 95,721,335.19
  5. Step 5: Solve for x
    x = 95,721,335.19/8,995.20
  6. Step 6: Final answer
    x = 10,641.38

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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.