Home / 8,687.14-13,020.64-3,997.31

Finding the Fourth Proportional to 8,687.14, 13,020.64 and 3,997.31

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Solution

The fourth proportional to 8,687.14, 13,020.64 and 3,997.31 is: 5,991.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,687.14 : 13,020.64 = 3,997.31 : x
  2. Step 2: Convert to fraction form
    8,687.14/13,020.64 = 3,997.31/x
  3. Step 3: Cross multiply
    8,687.14x = 13,020.64 × 3,997.31
  4. Step 4: Simplify right side
    8,687.14x = 52,047,459.38
  5. Step 5: Solve for x
    x = 52,047,459.38/8,687.14
  6. Step 6: Final answer
    x = 5,991.32

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1.5x scale

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.