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Finding the Fourth Proportional to 8,475.79, 12,718.39 and 3,795.61

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Solution

The fourth proportional to 8,475.79, 12,718.39 and 3,795.61 is: 5,695.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,475.79 : 12,718.39 = 3,795.61 : x
  2. Step 2: Convert to fraction form
    8,475.79/12,718.39 = 3,795.61/x
  3. Step 3: Cross multiply
    8,475.79x = 12,718.39 × 3,795.61
  4. Step 4: Simplify right side
    8,475.79x = 48,274,048.27
  5. Step 5: Solve for x
    x = 48,274,048.27/8,475.79
  6. Step 6: Final answer
    x = 5,695.52

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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.