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Finding the Fourth Proportional to 8,740.60, 13,113.60 and 3,192.46

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Solution

The fourth proportional to 8,740.60, 13,113.60 and 3,192.46 is: 4,789.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,740.60 : 13,113.60 = 3,192.46 : x
  2. Step 2: Convert to fraction form
    8,740.60/13,113.60 = 3,192.46/x
  3. Step 3: Cross multiply
    8,740.60x = 13,113.60 × 3,192.46
  4. Step 4: Simplify right side
    8,740.60x = 41,864,643.46
  5. Step 5: Solve for x
    x = 41,864,643.46/8,740.60
  6. Step 6: Final answer
    x = 4,789.68

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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.