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Finding the Fourth Proportional to 12,236.15, 16,882.99 and 7,200.58

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Solution

The fourth proportional to 12,236.15, 16,882.99 and 7,200.58 is: 9,935.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,236.15 : 16,882.99 = 7,200.58 : x
  2. Step 2: Convert to fraction form
    12,236.15/16,882.99 = 7,200.58/x
  3. Step 3: Cross multiply
    12,236.15x = 16,882.99 × 7,200.58
  4. Step 4: Simplify right side
    12,236.15x = 121,567,320.13
  5. Step 5: Solve for x
    x = 121,567,320.13/12,236.15
  6. Step 6: Final answer
    x = 9,935.10

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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.