Home / 9,217.28-13,821.12-3,291.88

Finding the Fourth Proportional to 9,217.28, 13,821.12 and 3,291.88

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Solution

The fourth proportional to 9,217.28, 13,821.12 and 3,291.88 is: 4,936.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,217.28 : 13,821.12 = 3,291.88 : x
  2. Step 2: Convert to fraction form
    9,217.28/13,821.12 = 3,291.88/x
  3. Step 3: Cross multiply
    9,217.28x = 13,821.12 × 3,291.88
  4. Step 4: Simplify right side
    9,217.28x = 45,497,468.51
  5. Step 5: Solve for x
    x = 45,497,468.51/9,217.28
  6. Step 6: Final answer
    x = 4,936.11

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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.