Home / 7,355.61-10,150.86-3,998.43

Finding the Fourth Proportional to 7,355.61, 10,150.86 and 3,998.43

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Solution

The fourth proportional to 7,355.61, 10,150.86 and 3,998.43 is: 5,517.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,355.61 : 10,150.86 = 3,998.43 : x
  2. Step 2: Convert to fraction form
    7,355.61/10,150.86 = 3,998.43/x
  3. Step 3: Cross multiply
    7,355.61x = 10,150.86 × 3,998.43
  4. Step 4: Simplify right side
    7,355.61x = 40,587,467.78
  5. Step 5: Solve for x
    x = 40,587,467.78/7,355.61
  6. Step 6: Final answer
    x = 5,517.89

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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.