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Finding the Fourth Proportional to 15,162.19, 22,749.90 and 5,308.54

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Solution

The fourth proportional to 15,162.19, 22,749.90 and 5,308.54 is: 7,965.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,162.19 : 22,749.90 = 5,308.54 : x
  2. Step 2: Convert to fraction form
    15,162.19/22,749.90 = 5,308.54/x
  3. Step 3: Cross multiply
    15,162.19x = 22,749.90 × 5,308.54
  4. Step 4: Simplify right side
    15,162.19x = 120,768,613.85
  5. Step 5: Solve for x
    x = 120,768,613.85/15,162.19
  6. Step 6: Final answer
    x = 7,965.12

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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.