Home / 11,151.96-15,389.92-6,675.90

Finding the Fourth Proportional to 11,151.96, 15,389.92 and 6,675.90

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Solution

The fourth proportional to 11,151.96, 15,389.92 and 6,675.90 is: 9,212.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,151.96 : 15,389.92 = 6,675.90 : x
  2. Step 2: Convert to fraction form
    11,151.96/15,389.92 = 6,675.90/x
  3. Step 3: Cross multiply
    11,151.96x = 15,389.92 × 6,675.90
  4. Step 4: Simplify right side
    11,151.96x = 102,741,566.93
  5. Step 5: Solve for x
    x = 102,741,566.93/11,151.96
  6. Step 6: Final answer
    x = 9,212.87

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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.