Home / 8,787.06-13,186.59-3,858.06

Finding the Fourth Proportional to 8,787.06, 13,186.59 and 3,858.06

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Solution

The fourth proportional to 8,787.06, 13,186.59 and 3,858.06 is: 5,789.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,787.06 : 13,186.59 = 3,858.06 : x
  2. Step 2: Convert to fraction form
    8,787.06/13,186.59 = 3,858.06/x
  3. Step 3: Cross multiply
    8,787.06x = 13,186.59 × 3,858.06
  4. Step 4: Simplify right side
    8,787.06x = 50,874,655.42
  5. Step 5: Solve for x
    x = 50,874,655.42/8,787.06
  6. Step 6: Final answer
    x = 5,789.72

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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.