Home / 10,979.13-16,468.94-3,959.71

Finding the Fourth Proportional to 10,979.13, 16,468.94 and 3,959.71

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Solution

The fourth proportional to 10,979.13, 16,468.94 and 3,959.71 is: 5,939.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,979.13 : 16,468.94 = 3,959.71 : x
  2. Step 2: Convert to fraction form
    10,979.13/16,468.94 = 3,959.71/x
  3. Step 3: Cross multiply
    10,979.13x = 16,468.94 × 3,959.71
  4. Step 4: Simplify right side
    10,979.13x = 65,212,226.41
  5. Step 5: Solve for x
    x = 65,212,226.41/10,979.13
  6. Step 6: Final answer
    x = 5,939.65

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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.