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Finding the Fourth Proportional to 8,540.58, 12,812.85 and 3,346.50

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Solution

The fourth proportional to 8,540.58, 12,812.85 and 3,346.50 is: 5,020.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,540.58 : 12,812.85 = 3,346.50 : x
  2. Step 2: Convert to fraction form
    8,540.58/12,812.85 = 3,346.50/x
  3. Step 3: Cross multiply
    8,540.58x = 12,812.85 × 3,346.50
  4. Step 4: Simplify right side
    8,540.58x = 42,878,202.53
  5. Step 5: Solve for x
    x = 42,878,202.53/8,540.58
  6. Step 6: Final answer
    x = 5,020.53

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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.