Home / 7,186.50-9,917.37-4,042.71

Finding the Fourth Proportional to 7,186.50, 9,917.37 and 4,042.71

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Solution

The fourth proportional to 7,186.50, 9,917.37 and 4,042.71 is: 5,578.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,186.50 : 9,917.37 = 4,042.71 : x
  2. Step 2: Convert to fraction form
    7,186.50/9,917.37 = 4,042.71/x
  3. Step 3: Cross multiply
    7,186.50x = 9,917.37 × 4,042.71
  4. Step 4: Simplify right side
    7,186.50x = 40,093,050.87
  5. Step 5: Solve for x
    x = 40,093,050.87/7,186.50
  6. Step 6: Final answer
    x = 5,578.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.