Home / 10,997.92-15,175.06-6,520.04

Finding the Fourth Proportional to 10,997.92, 15,175.06 and 6,520.04

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Solution

The fourth proportional to 10,997.92, 15,175.06 and 6,520.04 is: 8,996.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,997.92 : 15,175.06 = 6,520.04 : x
  2. Step 2: Convert to fraction form
    10,997.92/15,175.06 = 6,520.04/x
  3. Step 3: Cross multiply
    10,997.92x = 15,175.06 × 6,520.04
  4. Step 4: Simplify right side
    10,997.92x = 98,941,965.60
  5. Step 5: Solve for x
    x = 98,941,965.60/10,997.92
  6. Step 6: Final answer
    x = 8,996.43

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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.