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Finding the Fourth Proportional to 8,574.78, 12,861.12 and 2,334.54

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Solution

The fourth proportional to 8,574.78, 12,861.12 and 2,334.54 is: 3,501.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,574.78 : 12,861.12 = 2,334.54 : x
  2. Step 2: Convert to fraction form
    8,574.78/12,861.12 = 2,334.54/x
  3. Step 3: Cross multiply
    8,574.78x = 12,861.12 × 2,334.54
  4. Step 4: Simplify right side
    8,574.78x = 30,024,799.08
  5. Step 5: Solve for x
    x = 30,024,799.08/8,574.78
  6. Step 6: Final answer
    x = 3,501.52

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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.