Home / 8,724.20-13,078.64-3,462.92

Finding the Fourth Proportional to 8,724.20, 13,078.64 and 3,462.92

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Solution

The fourth proportional to 8,724.20, 13,078.64 and 3,462.92 is: 5,191.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,724.20 : 13,078.64 = 3,462.92 : x
  2. Step 2: Convert to fraction form
    8,724.20/13,078.64 = 3,462.92/x
  3. Step 3: Cross multiply
    8,724.20x = 13,078.64 × 3,462.92
  4. Step 4: Simplify right side
    8,724.20x = 45,290,284.03
  5. Step 5: Solve for x
    x = 45,290,284.03/8,724.20
  6. Step 6: Final answer
    x = 5,191.34

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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.