Home / 8,717.31-13,075.97-2,143.62

Finding the Fourth Proportional to 8,717.31, 13,075.97 and 2,143.62

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Solution

The fourth proportional to 8,717.31, 13,075.97 and 2,143.62 is: 3,215.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,717.31 : 13,075.97 = 2,143.62 : x
  2. Step 2: Convert to fraction form
    8,717.31/13,075.97 = 2,143.62/x
  3. Step 3: Cross multiply
    8,717.31x = 13,075.97 × 2,143.62
  4. Step 4: Simplify right side
    8,717.31x = 28,029,900.09
  5. Step 5: Solve for x
    x = 28,029,900.09/8,717.31
  6. Step 6: Final answer
    x = 3,215.43

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Similar ratio
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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.