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Finding the Fourth Proportional to 8,507.78, 12,764.27 and 4,350.71

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Solution

The fourth proportional to 8,507.78, 12,764.27 and 4,350.71 is: 6,527.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,507.78 : 12,764.27 = 4,350.71 : x
  2. Step 2: Convert to fraction form
    8,507.78/12,764.27 = 4,350.71/x
  3. Step 3: Cross multiply
    8,507.78x = 12,764.27 × 4,350.71
  4. Step 4: Simplify right side
    8,507.78x = 55,533,551.56
  5. Step 5: Solve for x
    x = 55,533,551.56/8,507.78
  6. Step 6: Final answer
    x = 6,527.39

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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.