Home / 11,115.36-15,343.92-6,925.68

Finding the Fourth Proportional to 11,115.36, 15,343.92 and 6,925.68

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Solution

The fourth proportional to 11,115.36, 15,343.92 and 6,925.68 is: 9,560.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,115.36 : 15,343.92 = 6,925.68 : x
  2. Step 2: Convert to fraction form
    11,115.36/15,343.92 = 6,925.68/x
  3. Step 3: Cross multiply
    11,115.36x = 15,343.92 × 6,925.68
  4. Step 4: Simplify right side
    11,115.36x = 106,267,079.87
  5. Step 5: Solve for x
    x = 106,267,079.87/11,115.36
  6. Step 6: Final answer
    x = 9,560.38

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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.