Home / 8,259.78-12,388.26-2,712.98

Finding the Fourth Proportional to 8,259.78, 12,388.26 and 2,712.98

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Solution

The fourth proportional to 8,259.78, 12,388.26 and 2,712.98 is: 4,069.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,259.78 : 12,388.26 = 2,712.98 : x
  2. Step 2: Convert to fraction form
    8,259.78/12,388.26 = 2,712.98/x
  3. Step 3: Cross multiply
    8,259.78x = 12,388.26 × 2,712.98
  4. Step 4: Simplify right side
    8,259.78x = 33,609,101.61
  5. Step 5: Solve for x
    x = 33,609,101.61/8,259.78
  6. Step 6: Final answer
    x = 4,069.01

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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.