Home / 8,686.23-13,029.24-2,112.42

Finding the Fourth Proportional to 8,686.23, 13,029.24 and 2,112.42

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Solution

The fourth proportional to 8,686.23, 13,029.24 and 2,112.42 is: 3,168.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,686.23 : 13,029.24 = 2,112.42 : x
  2. Step 2: Convert to fraction form
    8,686.23/13,029.24 = 2,112.42/x
  3. Step 3: Cross multiply
    8,686.23x = 13,029.24 × 2,112.42
  4. Step 4: Simplify right side
    8,686.23x = 27,523,235.41
  5. Step 5: Solve for x
    x = 27,523,235.41/8,686.23
  6. Step 6: Final answer
    x = 3,168.61

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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.