Home / 10,719.20-16,081.20-4,144.80

Finding the Fourth Proportional to 10,719.20, 16,081.20 and 4,144.80

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Solution

The fourth proportional to 10,719.20, 16,081.20 and 4,144.80 is: 6,218.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,719.20 : 16,081.20 = 4,144.80 : x
  2. Step 2: Convert to fraction form
    10,719.20/16,081.20 = 4,144.80/x
  3. Step 3: Cross multiply
    10,719.20x = 16,081.20 × 4,144.80
  4. Step 4: Simplify right side
    10,719.20x = 66,653,357.76
  5. Step 5: Solve for x
    x = 66,653,357.76/10,719.20
  6. Step 6: Final answer
    x = 6,218.13

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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.