Home / 8,125.54-12,185.89-3,445.48

Finding the Fourth Proportional to 8,125.54, 12,185.89 and 3,445.48

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Solution

The fourth proportional to 8,125.54, 12,185.89 and 3,445.48 is: 5,167.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,125.54 : 12,185.89 = 3,445.48 : x
  2. Step 2: Convert to fraction form
    8,125.54/12,185.89 = 3,445.48/x
  3. Step 3: Cross multiply
    8,125.54x = 12,185.89 × 3,445.48
  4. Step 4: Simplify right side
    8,125.54x = 41,986,162.12
  5. Step 5: Solve for x
    x = 41,986,162.12/8,125.54
  6. Step 6: Final answer
    x = 5,167.19

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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.