Home / 10,979.38-16,529.85-7,539.22

Finding the Fourth Proportional to 10,979.38, 16,529.85 and 7,539.22

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Solution

The fourth proportional to 10,979.38, 16,529.85 and 7,539.22 is: 11,350.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,979.38 : 16,529.85 = 7,539.22 : x
  2. Step 2: Convert to fraction form
    10,979.38/16,529.85 = 7,539.22/x
  3. Step 3: Cross multiply
    10,979.38x = 16,529.85 × 7,539.22
  4. Step 4: Simplify right side
    10,979.38x = 124,622,175.72
  5. Step 5: Solve for x
    x = 124,622,175.72/10,979.38
  6. Step 6: Final answer
    x = 11,350.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.