Home / 11,118-15,343.26-6,338.70

Finding the Fourth Proportional to 11,118, 15,343.26 and 6,338.70

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Solution

The fourth proportional to 11,118, 15,343.26 and 6,338.70 is: 8,747.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,118 : 15,343.26 = 6,338.70 : x
  2. Step 2: Convert to fraction form
    11,118/15,343.26 = 6,338.70/x
  3. Step 3: Cross multiply
    11,118x = 15,343.26 × 6,338.70
  4. Step 4: Simplify right side
    11,118x = 97,256,322.16
  5. Step 5: Solve for x
    x = 97,256,322.16/11,118
  6. Step 6: Final answer
    x = 8,747.65

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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.