Home / 8,870.20-13,310.10-3,940.60

Finding the Fourth Proportional to 8,870.20, 13,310.10 and 3,940.60

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Solution

The fourth proportional to 8,870.20, 13,310.10 and 3,940.60 is: 5,913.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,870.20 : 13,310.10 = 3,940.60 : x
  2. Step 2: Convert to fraction form
    8,870.20/13,310.10 = 3,940.60/x
  3. Step 3: Cross multiply
    8,870.20x = 13,310.10 × 3,940.60
  4. Step 4: Simplify right side
    8,870.20x = 52,449,780.06
  5. Step 5: Solve for x
    x = 52,449,780.06/8,870.20
  6. Step 6: Final answer
    x = 5,913.03

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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.