Home / 8,724.60-13,086.18-2,879.64

Finding the Fourth Proportional to 8,724.60, 13,086.18 and 2,879.64

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Solution

The fourth proportional to 8,724.60, 13,086.18 and 2,879.64 is: 4,319.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,724.60 : 13,086.18 = 2,879.64 : x
  2. Step 2: Convert to fraction form
    8,724.60/13,086.18 = 2,879.64/x
  3. Step 3: Cross multiply
    8,724.60x = 13,086.18 × 2,879.64
  4. Step 4: Simplify right side
    8,724.60x = 37,683,487.38
  5. Step 5: Solve for x
    x = 37,683,487.38/8,724.60
  6. Step 6: Final answer
    x = 4,319.22

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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.