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Finding the Fourth Proportional to 14,608.52, 20,161.18 and 8,642.11

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Solution

The fourth proportional to 14,608.52, 20,161.18 and 8,642.11 is: 11,926.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,608.52 : 20,161.18 = 8,642.11 : x
  2. Step 2: Convert to fraction form
    14,608.52/20,161.18 = 8,642.11/x
  3. Step 3: Cross multiply
    14,608.52x = 20,161.18 × 8,642.11
  4. Step 4: Simplify right side
    14,608.52x = 174,235,041.68
  5. Step 5: Solve for x
    x = 174,235,041.68/14,608.52
  6. Step 6: Final answer
    x = 11,926.95

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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.