Home / 6,867.60-10,290.40-6,685.36

Finding the Fourth Proportional to 6,867.60, 10,290.40 and 6,685.36

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Solution

The fourth proportional to 6,867.60, 10,290.40 and 6,685.36 is: 10,017.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,867.60 : 10,290.40 = 6,685.36 : x
  2. Step 2: Convert to fraction form
    6,867.60/10,290.40 = 6,685.36/x
  3. Step 3: Cross multiply
    6,867.60x = 10,290.40 × 6,685.36
  4. Step 4: Simplify right side
    6,867.60x = 68,795,028.54
  5. Step 5: Solve for x
    x = 68,795,028.54/6,867.60
  6. Step 6: Final answer
    x = 10,017.33

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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.