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Finding the Fourth Proportional to 9,110, 13,663.78 and 3,559.48

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Solution

The fourth proportional to 9,110, 13,663.78 and 3,559.48 is: 5,338.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,110 : 13,663.78 = 3,559.48 : x
  2. Step 2: Convert to fraction form
    9,110/13,663.78 = 3,559.48/x
  3. Step 3: Cross multiply
    9,110x = 13,663.78 × 3,559.48
  4. Step 4: Simplify right side
    9,110x = 48,635,951.63
  5. Step 5: Solve for x
    x = 48,635,951.63/9,110
  6. Step 6: Final answer
    x = 5,338.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.