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Finding the Fourth Proportional to 15,193.20, 22,750.02 and 12,215.82

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Solution

The fourth proportional to 15,193.20, 22,750.02 and 12,215.82 is: 18,291.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,193.20 : 22,750.02 = 12,215.82 : x
  2. Step 2: Convert to fraction form
    15,193.20/22,750.02 = 12,215.82/x
  3. Step 3: Cross multiply
    15,193.20x = 22,750.02 × 12,215.82
  4. Step 4: Simplify right side
    15,193.20x = 277,910,149.32
  5. Step 5: Solve for x
    x = 277,910,149.32/15,193.20
  6. Step 6: Final answer
    x = 18,291.75

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