Home / 11,929.56-17,891.78-4,531.43

Finding the Fourth Proportional to 11,929.56, 17,891.78 and 4,531.43

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Solution

The fourth proportional to 11,929.56, 17,891.78 and 4,531.43 is: 6,796.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,929.56 : 17,891.78 = 4,531.43 : x
  2. Step 2: Convert to fraction form
    11,929.56/17,891.78 = 4,531.43/x
  3. Step 3: Cross multiply
    11,929.56x = 17,891.78 × 4,531.43
  4. Step 4: Simplify right side
    11,929.56x = 81,075,236.53
  5. Step 5: Solve for x
    x = 81,075,236.53/11,929.56
  6. Step 6: Final answer
    x = 6,796.16

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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.