Home / 7,634.20-10,534.72-4,489.80

Finding the Fourth Proportional to 7,634.20, 10,534.72 and 4,489.80

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Solution

The fourth proportional to 7,634.20, 10,534.72 and 4,489.80 is: 6,195.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,634.20 : 10,534.72 = 4,489.80 : x
  2. Step 2: Convert to fraction form
    7,634.20/10,534.72 = 4,489.80/x
  3. Step 3: Cross multiply
    7,634.20x = 10,534.72 × 4,489.80
  4. Step 4: Simplify right side
    7,634.20x = 47,298,785.86
  5. Step 5: Solve for x
    x = 47,298,785.86/7,634.20
  6. Step 6: Final answer
    x = 6,195.64

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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.