Home / 8,723.78-13,087.56-2,799.29

Finding the Fourth Proportional to 8,723.78, 13,087.56 and 2,799.29

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Solution

The fourth proportional to 8,723.78, 13,087.56 and 2,799.29 is: 4,199.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,723.78 : 13,087.56 = 2,799.29 : x
  2. Step 2: Convert to fraction form
    8,723.78/13,087.56 = 2,799.29/x
  3. Step 3: Cross multiply
    8,723.78x = 13,087.56 × 2,799.29
  4. Step 4: Simplify right side
    8,723.78x = 36,635,875.83
  5. Step 5: Solve for x
    x = 36,635,875.83/8,723.78
  6. Step 6: Final answer
    x = 4,199.54

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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.