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Finding the Fourth Proportional to 15,040.60, 20,757.81 and 8,752.96

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Solution

The fourth proportional to 15,040.60, 20,757.81 and 8,752.96 is: 12,080.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,040.60 : 20,757.81 = 8,752.96 : x
  2. Step 2: Convert to fraction form
    15,040.60/20,757.81 = 8,752.96/x
  3. Step 3: Cross multiply
    15,040.60x = 20,757.81 × 8,752.96
  4. Step 4: Simplify right side
    15,040.60x = 181,692,280.62
  5. Step 5: Solve for x
    x = 181,692,280.62/15,040.60
  6. Step 6: Final answer
    x = 12,080.12

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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.