Home / 7,713.44-11,561.60-3,820.64

Finding the Fourth Proportional to 7,713.44, 11,561.60 and 3,820.64

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Solution

The fourth proportional to 7,713.44, 11,561.60 and 3,820.64 is: 5,726.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,713.44 : 11,561.60 = 3,820.64 : x
  2. Step 2: Convert to fraction form
    7,713.44/11,561.60 = 3,820.64/x
  3. Step 3: Cross multiply
    7,713.44x = 11,561.60 × 3,820.64
  4. Step 4: Simplify right side
    7,713.44x = 44,172,711.42
  5. Step 5: Solve for x
    x = 44,172,711.42/7,713.44
  6. Step 6: Final answer
    x = 5,726.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.