Home / 7,388.20-10,193.61-4,243.78

Finding the Fourth Proportional to 7,388.20, 10,193.61 and 4,243.78

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Solution

The fourth proportional to 7,388.20, 10,193.61 and 4,243.78 is: 5,855.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,388.20 : 10,193.61 = 4,243.78 : x
  2. Step 2: Convert to fraction form
    7,388.20/10,193.61 = 4,243.78/x
  3. Step 3: Cross multiply
    7,388.20x = 10,193.61 × 4,243.78
  4. Step 4: Simplify right side
    7,388.20x = 43,259,438.25
  5. Step 5: Solve for x
    x = 43,259,438.25/7,388.20
  6. Step 6: Final answer
    x = 5,855.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.