Home / 8,261.30-12,389.33-2,713.36

Finding the Fourth Proportional to 8,261.30, 12,389.33 and 2,713.36

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Solution

The fourth proportional to 8,261.30, 12,389.33 and 2,713.36 is: 4,069.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,261.30 : 12,389.33 = 2,713.36 : x
  2. Step 2: Convert to fraction form
    8,261.30/12,389.33 = 2,713.36/x
  3. Step 3: Cross multiply
    8,261.30x = 12,389.33 × 2,713.36
  4. Step 4: Simplify right side
    8,261.30x = 33,616,657.29
  5. Step 5: Solve for x
    x = 33,616,657.29/8,261.30
  6. Step 6: Final answer
    x = 4,069.17

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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.