Home / 10,081.98-15,126.20-4,161.65

Finding the Fourth Proportional to 10,081.98, 15,126.20 and 4,161.65

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Solution

The fourth proportional to 10,081.98, 15,126.20 and 4,161.65 is: 6,243.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,081.98 : 15,126.20 = 4,161.65 : x
  2. Step 2: Convert to fraction form
    10,081.98/15,126.20 = 4,161.65/x
  3. Step 3: Cross multiply
    10,081.98x = 15,126.20 × 4,161.65
  4. Step 4: Simplify right side
    10,081.98x = 62,949,853.79
  5. Step 5: Solve for x
    x = 62,949,853.79/10,081.98
  6. Step 6: Final answer
    x = 6,243.80

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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.