Home / 9,215.29-13,828.38-3,671.20

Finding the Fourth Proportional to 9,215.29, 13,828.38 and 3,671.20

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Solution

The fourth proportional to 9,215.29, 13,828.38 and 3,671.20 is: 5,508.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,215.29 : 13,828.38 = 3,671.20 : x
  2. Step 2: Convert to fraction form
    9,215.29/13,828.38 = 3,671.20/x
  3. Step 3: Cross multiply
    9,215.29x = 13,828.38 × 3,671.20
  4. Step 4: Simplify right side
    9,215.29x = 50,766,748.66
  5. Step 5: Solve for x
    x = 50,766,748.66/9,215.29
  6. Step 6: Final answer
    x = 5,508.97

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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.