Home / 12,065.85-18,101.19-4,168.65

Finding the Fourth Proportional to 12,065.85, 18,101.19 and 4,168.65

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Solution

The fourth proportional to 12,065.85, 18,101.19 and 4,168.65 is: 6,253.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,065.85 : 18,101.19 = 4,168.65 : x
  2. Step 2: Convert to fraction form
    12,065.85/18,101.19 = 4,168.65/x
  3. Step 3: Cross multiply
    12,065.85x = 18,101.19 × 4,168.65
  4. Step 4: Simplify right side
    12,065.85x = 75,457,585.76
  5. Step 5: Solve for x
    x = 75,457,585.76/12,065.85
  6. Step 6: Final answer
    x = 6,253.81

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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.