Home / 13,578.42-20,350.62-7,338.18

Finding the Fourth Proportional to 13,578.42, 20,350.62 and 7,338.18

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Solution

The fourth proportional to 13,578.42, 20,350.62 and 7,338.18 is: 10,998.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,578.42 : 20,350.62 = 7,338.18 : x
  2. Step 2: Convert to fraction form
    13,578.42/20,350.62 = 7,338.18/x
  3. Step 3: Cross multiply
    13,578.42x = 20,350.62 × 7,338.18
  4. Step 4: Simplify right side
    13,578.42x = 149,336,512.67
  5. Step 5: Solve for x
    x = 149,336,512.67/13,578.42
  6. Step 6: Final answer
    x = 10,998.08

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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.