Home / 7,687.18-11,531.16-3,742.06

Finding the Fourth Proportional to 7,687.18, 11,531.16 and 3,742.06

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Solution

The fourth proportional to 7,687.18, 11,531.16 and 3,742.06 is: 5,613.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,687.18 : 11,531.16 = 3,742.06 : x
  2. Step 2: Convert to fraction form
    7,687.18/11,531.16 = 3,742.06/x
  3. Step 3: Cross multiply
    7,687.18x = 11,531.16 × 3,742.06
  4. Step 4: Simplify right side
    7,687.18x = 43,150,292.59
  5. Step 5: Solve for x
    x = 43,150,292.59/7,687.18
  6. Step 6: Final answer
    x = 5,613.28

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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.