Home / 8,001.13-11,999.88-2,158.21

Finding the Fourth Proportional to 8,001.13, 11,999.88 and 2,158.21

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Solution

The fourth proportional to 8,001.13, 11,999.88 and 2,158.21 is: 3,236.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,001.13 : 11,999.88 = 2,158.21 : x
  2. Step 2: Convert to fraction form
    8,001.13/11,999.88 = 2,158.21/x
  3. Step 3: Cross multiply
    8,001.13x = 11,999.88 × 2,158.21
  4. Step 4: Simplify right side
    8,001.13x = 25,898,261.01
  5. Step 5: Solve for x
    x = 25,898,261.01/8,001.13
  6. Step 6: Final answer
    x = 3,236.83

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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.