Home / 12,125.55-18,188.25-3,360.42

Finding the Fourth Proportional to 12,125.55, 18,188.25 and 3,360.42

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Solution

The fourth proportional to 12,125.55, 18,188.25 and 3,360.42 is: 5,040.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,125.55 : 18,188.25 = 3,360.42 : x
  2. Step 2: Convert to fraction form
    12,125.55/18,188.25 = 3,360.42/x
  3. Step 3: Cross multiply
    12,125.55x = 18,188.25 × 3,360.42
  4. Step 4: Simplify right side
    12,125.55x = 61,120,159.07
  5. Step 5: Solve for x
    x = 61,120,159.07/12,125.55
  6. Step 6: Final answer
    x = 5,040.61

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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.