Home / 8,867.10-13,303.71-3,940.20

Finding the Fourth Proportional to 8,867.10, 13,303.71 and 3,940.20

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Solution

The fourth proportional to 8,867.10, 13,303.71 and 3,940.20 is: 5,911.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,867.10 : 13,303.71 = 3,940.20 : x
  2. Step 2: Convert to fraction form
    8,867.10/13,303.71 = 3,940.20/x
  3. Step 3: Cross multiply
    8,867.10x = 13,303.71 × 3,940.20
  4. Step 4: Simplify right side
    8,867.10x = 52,419,278.14
  5. Step 5: Solve for x
    x = 52,419,278.14/8,867.10
  6. Step 6: Final answer
    x = 5,911.66

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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.