Home / 8,631.31-11,914.14-5,982.21

Finding the Fourth Proportional to 8,631.31, 11,914.14 and 5,982.21

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Solution

The fourth proportional to 8,631.31, 11,914.14 and 5,982.21 is: 8,257.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,631.31 : 11,914.14 = 5,982.21 : x
  2. Step 2: Convert to fraction form
    8,631.31/11,914.14 = 5,982.21/x
  3. Step 3: Cross multiply
    8,631.31x = 11,914.14 × 5,982.21
  4. Step 4: Simplify right side
    8,631.31x = 71,272,887.45
  5. Step 5: Solve for x
    x = 71,272,887.45/8,631.31
  6. Step 6: Final answer
    x = 8,257.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.