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Finding the Fourth Proportional to 11,100.88, 15,319.20 and 6,065.20

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Solution

The fourth proportional to 11,100.88, 15,319.20 and 6,065.20 is: 8,369.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,100.88 : 15,319.20 = 6,065.20 : x
  2. Step 2: Convert to fraction form
    11,100.88/15,319.20 = 6,065.20/x
  3. Step 3: Cross multiply
    11,100.88x = 15,319.20 × 6,065.20
  4. Step 4: Simplify right side
    11,100.88x = 92,914,011.84
  5. Step 5: Solve for x
    x = 92,914,011.84/11,100.88
  6. Step 6: Final answer
    x = 8,369.97

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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.