Home / 8,687.94-13,031.71-2,114.16

Finding the Fourth Proportional to 8,687.94, 13,031.71 and 2,114.16

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Solution

The fourth proportional to 8,687.94, 13,031.71 and 2,114.16 is: 3,171.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,687.94 : 13,031.71 = 2,114.16 : x
  2. Step 2: Convert to fraction form
    8,687.94/13,031.71 = 2,114.16/x
  3. Step 3: Cross multiply
    8,687.94x = 13,031.71 × 2,114.16
  4. Step 4: Simplify right side
    8,687.94x = 27,551,120.01
  5. Step 5: Solve for x
    x = 27,551,120.01/8,687.94
  6. Step 6: Final answer
    x = 3,171.19

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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.