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Finding the Fourth Proportional to 15,108, 22,645.80 and 7,299.60

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Solution

The fourth proportional to 15,108, 22,645.80 and 7,299.60 is: 10,941.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,108 : 22,645.80 = 7,299.60 : x
  2. Step 2: Convert to fraction form
    15,108/22,645.80 = 7,299.60/x
  3. Step 3: Cross multiply
    15,108x = 22,645.80 × 7,299.60
  4. Step 4: Simplify right side
    15,108x = 165,305,281.68
  5. Step 5: Solve for x
    x = 165,305,281.68/15,108
  6. Step 6: Final answer
    x = 10,941.57

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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.