Home / 8,567.20-12,850.80-3,947.68

Finding the Fourth Proportional to 8,567.20, 12,850.80 and 3,947.68

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Solution

The fourth proportional to 8,567.20, 12,850.80 and 3,947.68 is: 5,921.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,567.20 : 12,850.80 = 3,947.68 : x
  2. Step 2: Convert to fraction form
    8,567.20/12,850.80 = 3,947.68/x
  3. Step 3: Cross multiply
    8,567.20x = 12,850.80 × 3,947.68
  4. Step 4: Simplify right side
    8,567.20x = 50,730,846.14
  5. Step 5: Solve for x
    x = 50,730,846.14/8,567.20
  6. Step 6: Final answer
    x = 5,921.52

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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.