Home / 8,972.12-13,458.86-2,398.28

Finding the Fourth Proportional to 8,972.12, 13,458.86 and 2,398.28

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Solution

The fourth proportional to 8,972.12, 13,458.86 and 2,398.28 is: 3,597.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,972.12 : 13,458.86 = 2,398.28 : x
  2. Step 2: Convert to fraction form
    8,972.12/13,458.86 = 2,398.28/x
  3. Step 3: Cross multiply
    8,972.12x = 13,458.86 × 2,398.28
  4. Step 4: Simplify right side
    8,972.12x = 32,278,114.76
  5. Step 5: Solve for x
    x = 32,278,114.76/8,972.12
  6. Step 6: Final answer
    x = 3,597.60

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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.