Home / 8,261.36-12,388.98-2,713.64

Finding the Fourth Proportional to 8,261.36, 12,388.98 and 2,713.64

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Solution

The fourth proportional to 8,261.36, 12,388.98 and 2,713.64 is: 4,069.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,261.36 : 12,388.98 = 2,713.64 : x
  2. Step 2: Convert to fraction form
    8,261.36/12,388.98 = 2,713.64/x
  3. Step 3: Cross multiply
    8,261.36x = 12,388.98 × 2,713.64
  4. Step 4: Simplify right side
    8,261.36x = 33,619,231.69
  5. Step 5: Solve for x
    x = 33,619,231.69/8,261.36
  6. Step 6: Final answer
    x = 4,069.45

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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.