Home / 8,972.44-13,458.72-3,129.02

Finding the Fourth Proportional to 8,972.44, 13,458.72 and 3,129.02

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Solution

The fourth proportional to 8,972.44, 13,458.72 and 3,129.02 is: 4,693.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,972.44 : 13,458.72 = 3,129.02 : x
  2. Step 2: Convert to fraction form
    8,972.44/13,458.72 = 3,129.02/x
  3. Step 3: Cross multiply
    8,972.44x = 13,458.72 × 3,129.02
  4. Step 4: Simplify right side
    8,972.44x = 42,112,604.05
  5. Step 5: Solve for x
    x = 42,112,604.05/8,972.44
  6. Step 6: Final answer
    x = 4,693.55

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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.