Home / 11,231.40-15,500.64-6,757.38

Finding the Fourth Proportional to 11,231.40, 15,500.64 and 6,757.38

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Solution

The fourth proportional to 11,231.40, 15,500.64 and 6,757.38 is: 9,325.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,231.40 : 15,500.64 = 6,757.38 : x
  2. Step 2: Convert to fraction form
    11,231.40/15,500.64 = 6,757.38/x
  3. Step 3: Cross multiply
    11,231.40x = 15,500.64 × 6,757.38
  4. Step 4: Simplify right side
    11,231.40x = 104,743,714.72
  5. Step 5: Solve for x
    x = 104,743,714.72/11,231.40
  6. Step 6: Final answer
    x = 9,325.97

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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.