Home / 8,729.64-13,105.04-5,770.56

Finding the Fourth Proportional to 8,729.64, 13,105.04 and 5,770.56

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Solution

The fourth proportional to 8,729.64, 13,105.04 and 5,770.56 is: 8,662.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,729.64 : 13,105.04 = 5,770.56 : x
  2. Step 2: Convert to fraction form
    8,729.64/13,105.04 = 5,770.56/x
  3. Step 3: Cross multiply
    8,729.64x = 13,105.04 × 5,770.56
  4. Step 4: Simplify right side
    8,729.64x = 75,623,390.77
  5. Step 5: Solve for x
    x = 75,623,390.77/8,729.64
  6. Step 6: Final answer
    x = 8,662.83

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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.