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Finding the Fourth Proportional to 13,452.68, 20,182.40 and 4,687.68

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Solution

The fourth proportional to 13,452.68, 20,182.40 and 4,687.68 is: 7,032.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,452.68 : 20,182.40 = 4,687.68 : x
  2. Step 2: Convert to fraction form
    13,452.68/20,182.40 = 4,687.68/x
  3. Step 3: Cross multiply
    13,452.68x = 20,182.40 × 4,687.68
  4. Step 4: Simplify right side
    13,452.68x = 94,608,632.83
  5. Step 5: Solve for x
    x = 94,608,632.83/13,452.68
  6. Step 6: Final answer
    x = 7,032.70

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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.