Home / 8,125.26-12,185.39-3,445.18

Finding the Fourth Proportional to 8,125.26, 12,185.39 and 3,445.18

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Solution

The fourth proportional to 8,125.26, 12,185.39 and 3,445.18 is: 5,166.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,125.26 : 12,185.39 = 3,445.18 : x
  2. Step 2: Convert to fraction form
    8,125.26/12,185.39 = 3,445.18/x
  3. Step 3: Cross multiply
    8,125.26x = 12,185.39 × 3,445.18
  4. Step 4: Simplify right side
    8,125.26x = 41,980,840.07
  5. Step 5: Solve for x
    x = 41,980,840.07/8,125.26
  6. Step 6: Final answer
    x = 5,166.71

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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.