Home / 7,518.87-10,375.90-4,161.69

Finding the Fourth Proportional to 7,518.87, 10,375.90 and 4,161.69

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Solution

The fourth proportional to 7,518.87, 10,375.90 and 4,161.69 is: 5,743.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,518.87 : 10,375.90 = 4,161.69 : x
  2. Step 2: Convert to fraction form
    7,518.87/10,375.90 = 4,161.69/x
  3. Step 3: Cross multiply
    7,518.87x = 10,375.90 × 4,161.69
  4. Step 4: Simplify right side
    7,518.87x = 43,181,279.27
  5. Step 5: Solve for x
    x = 43,181,279.27/7,518.87
  6. Step 6: Final answer
    x = 5,743.05

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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.