Home / 8,766.78-13,150.80-2,762.34

Finding the Fourth Proportional to 8,766.78, 13,150.80 and 2,762.34

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Solution

The fourth proportional to 8,766.78, 13,150.80 and 2,762.34 is: 4,143.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,766.78 : 13,150.80 = 2,762.34 : x
  2. Step 2: Convert to fraction form
    8,766.78/13,150.80 = 2,762.34/x
  3. Step 3: Cross multiply
    8,766.78x = 13,150.80 × 2,762.34
  4. Step 4: Simplify right side
    8,766.78x = 36,326,980.87
  5. Step 5: Solve for x
    x = 36,326,980.87/8,766.78
  6. Step 6: Final answer
    x = 4,143.71

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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.