Home / 7,518.80-10,375.86-4,161.64

Finding the Fourth Proportional to 7,518.80, 10,375.86 and 4,161.64

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Solution

The fourth proportional to 7,518.80, 10,375.86 and 4,161.64 is: 5,743.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,518.80 : 10,375.86 = 4,161.64 : x
  2. Step 2: Convert to fraction form
    7,518.80/10,375.86 = 4,161.64/x
  3. Step 3: Cross multiply
    7,518.80x = 10,375.86 × 4,161.64
  4. Step 4: Simplify right side
    7,518.80x = 43,180,594.01
  5. Step 5: Solve for x
    x = 43,180,594.01/7,518.80
  6. Step 6: Final answer
    x = 5,743.02

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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.