Home / 11,778.23-17,666.31-3,880.68

Finding the Fourth Proportional to 11,778.23, 17,666.31 and 3,880.68

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Solution

The fourth proportional to 11,778.23, 17,666.31 and 3,880.68 is: 5,820.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,778.23 : 17,666.31 = 3,880.68 : x
  2. Step 2: Convert to fraction form
    11,778.23/17,666.31 = 3,880.68/x
  3. Step 3: Cross multiply
    11,778.23x = 17,666.31 × 3,880.68
  4. Step 4: Simplify right side
    11,778.23x = 68,557,295.89
  5. Step 5: Solve for x
    x = 68,557,295.89/11,778.23
  6. Step 6: Final answer
    x = 5,820.68

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1.5x scale

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.