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Finding the Fourth Proportional to 8,756.02, 12,083.31 and 5,612.20

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Solution

The fourth proportional to 8,756.02, 12,083.31 and 5,612.20 is: 7,744.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,756.02 : 12,083.31 = 5,612.20 : x
  2. Step 2: Convert to fraction form
    8,756.02/12,083.31 = 5,612.20/x
  3. Step 3: Cross multiply
    8,756.02x = 12,083.31 × 5,612.20
  4. Step 4: Simplify right side
    8,756.02x = 67,813,990.14
  5. Step 5: Solve for x
    x = 67,813,990.14/8,756.02
  6. Step 6: Final answer
    x = 7,744.85

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.