Home / 8,687.25-11,998.31-5,887.89

Finding the Fourth Proportional to 8,687.25, 11,998.31 and 5,887.89

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Solution

The fourth proportional to 8,687.25, 11,998.31 and 5,887.89 is: 8,132.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,687.25 : 11,998.31 = 5,887.89 : x
  2. Step 2: Convert to fraction form
    8,687.25/11,998.31 = 5,887.89/x
  3. Step 3: Cross multiply
    8,687.25x = 11,998.31 × 5,887.89
  4. Step 4: Simplify right side
    8,687.25x = 70,644,700.03
  5. Step 5: Solve for x
    x = 70,644,700.03/8,687.25
  6. Step 6: Final answer
    x = 8,132.00

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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.