Home / 12,001.96-17,990.36-6,729.24

Finding the Fourth Proportional to 12,001.96, 17,990.36 and 6,729.24

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Solution

The fourth proportional to 12,001.96, 17,990.36 and 6,729.24 is: 10,086.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,001.96 : 17,990.36 = 6,729.24 : x
  2. Step 2: Convert to fraction form
    12,001.96/17,990.36 = 6,729.24/x
  3. Step 3: Cross multiply
    12,001.96x = 17,990.36 × 6,729.24
  4. Step 4: Simplify right side
    12,001.96x = 121,061,450.13
  5. Step 5: Solve for x
    x = 121,061,450.13/12,001.96
  6. Step 6: Final answer
    x = 10,086.81

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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.