Home / 12,107.12-18,159.32-3,343.28

Finding the Fourth Proportional to 12,107.12, 18,159.32 and 3,343.28

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Solution

The fourth proportional to 12,107.12, 18,159.32 and 3,343.28 is: 5,014.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,107.12 : 18,159.32 = 3,343.28 : x
  2. Step 2: Convert to fraction form
    12,107.12/18,159.32 = 3,343.28/x
  3. Step 3: Cross multiply
    12,107.12x = 18,159.32 × 3,343.28
  4. Step 4: Simplify right side
    12,107.12x = 60,711,691.37
  5. Step 5: Solve for x
    x = 60,711,691.37/12,107.12
  6. Step 6: Final answer
    x = 5,014.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.