Home / 11,983.55-16,538.18-6,679.26

Finding the Fourth Proportional to 11,983.55, 16,538.18 and 6,679.26

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Solution

The fourth proportional to 11,983.55, 16,538.18 and 6,679.26 is: 9,217.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,983.55 : 16,538.18 = 6,679.26 : x
  2. Step 2: Convert to fraction form
    11,983.55/16,538.18 = 6,679.26/x
  3. Step 3: Cross multiply
    11,983.55x = 16,538.18 × 6,679.26
  4. Step 4: Simplify right side
    11,983.55x = 110,462,770.75
  5. Step 5: Solve for x
    x = 110,462,770.75/11,983.55
  6. Step 6: Final answer
    x = 9,217.87

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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.