Home / 11,972.65-17,959.48-3,539.17

Finding the Fourth Proportional to 11,972.65, 17,959.48 and 3,539.17

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Solution

The fourth proportional to 11,972.65, 17,959.48 and 3,539.17 is: 5,308.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,972.65 : 17,959.48 = 3,539.17 : x
  2. Step 2: Convert to fraction form
    11,972.65/17,959.48 = 3,539.17/x
  3. Step 3: Cross multiply
    11,972.65x = 17,959.48 × 3,539.17
  4. Step 4: Simplify right side
    11,972.65x = 63,561,733.53
  5. Step 5: Solve for x
    x = 63,561,733.53/11,972.65
  6. Step 6: Final answer
    x = 5,308.91

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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.