Home / 8,722.86-13,084.59-3,458.87

Finding the Fourth Proportional to 8,722.86, 13,084.59 and 3,458.87

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Solution

The fourth proportional to 8,722.86, 13,084.59 and 3,458.87 is: 5,188.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,722.86 : 13,084.59 = 3,458.87 : x
  2. Step 2: Convert to fraction form
    8,722.86/13,084.59 = 3,458.87/x
  3. Step 3: Cross multiply
    8,722.86x = 13,084.59 × 3,458.87
  4. Step 4: Simplify right side
    8,722.86x = 45,257,830.39
  5. Step 5: Solve for x
    x = 45,257,830.39/8,722.86
  6. Step 6: Final answer
    x = 5,188.42

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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.