Home / 8,619.75-12,927.11-3,937.28

Finding the Fourth Proportional to 8,619.75, 12,927.11 and 3,937.28

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Solution

The fourth proportional to 8,619.75, 12,927.11 and 3,937.28 is: 5,904.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,619.75 : 12,927.11 = 3,937.28 : x
  2. Step 2: Convert to fraction form
    8,619.75/12,927.11 = 3,937.28/x
  3. Step 3: Cross multiply
    8,619.75x = 12,927.11 × 3,937.28
  4. Step 4: Simplify right side
    8,619.75x = 50,897,567.34
  5. Step 5: Solve for x
    x = 50,897,567.34/8,619.75
  6. Step 6: Final answer
    x = 5,904.76

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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.