Home / 19,391.86-29,083.66-8,858.88

Finding the Fourth Proportional to 19,391.86, 29,083.66 and 8,858.88

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Solution

The fourth proportional to 19,391.86, 29,083.66 and 8,858.88 is: 13,286.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,391.86 : 29,083.66 = 8,858.88 : x
  2. Step 2: Convert to fraction form
    19,391.86/29,083.66 = 8,858.88/x
  3. Step 3: Cross multiply
    19,391.86x = 29,083.66 × 8,858.88
  4. Step 4: Simplify right side
    19,391.86x = 257,648,653.90
  5. Step 5: Solve for x
    x = 257,648,653.90/19,391.86
  6. Step 6: Final answer
    x = 13,286.43

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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.