Home / 12,063.87-18,102.29-5,136.75

Finding the Fourth Proportional to 12,063.87, 18,102.29 and 5,136.75

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Solution

The fourth proportional to 12,063.87, 18,102.29 and 5,136.75 is: 7,707.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,063.87 : 18,102.29 = 5,136.75 : x
  2. Step 2: Convert to fraction form
    12,063.87/18,102.29 = 5,136.75/x
  3. Step 3: Cross multiply
    12,063.87x = 18,102.29 × 5,136.75
  4. Step 4: Simplify right side
    12,063.87x = 92,986,912.47
  5. Step 5: Solve for x
    x = 92,986,912.47/12,063.87
  6. Step 6: Final answer
    x = 7,707.88

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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.