Home / 12,343.14-18,515.61-3,578.10

Finding the Fourth Proportional to 12,343.14, 18,515.61 and 3,578.10

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Solution

The fourth proportional to 12,343.14, 18,515.61 and 3,578.10 is: 5,367.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,343.14 : 18,515.61 = 3,578.10 : x
  2. Step 2: Convert to fraction form
    12,343.14/18,515.61 = 3,578.10/x
  3. Step 3: Cross multiply
    12,343.14x = 18,515.61 × 3,578.10
  4. Step 4: Simplify right side
    12,343.14x = 66,250,704.14
  5. Step 5: Solve for x
    x = 66,250,704.14/12,343.14
  6. Step 6: Final answer
    x = 5,367.41

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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.