Home / 13,948.14-20,922.18-8,757.66

Finding the Fourth Proportional to 13,948.14, 20,922.18 and 8,757.66

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Solution

The fourth proportional to 13,948.14, 20,922.18 and 8,757.66 is: 13,136.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,948.14 : 20,922.18 = 8,757.66 : x
  2. Step 2: Convert to fraction form
    13,948.14/20,922.18 = 8,757.66/x
  3. Step 3: Cross multiply
    13,948.14x = 20,922.18 × 8,757.66
  4. Step 4: Simplify right side
    13,948.14x = 183,229,338.90
  5. Step 5: Solve for x
    x = 183,229,338.90/13,948.14
  6. Step 6: Final answer
    x = 13,136.47

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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.