Home / 11,138.46-16,773.19-8,040.20

Finding the Fourth Proportional to 11,138.46, 16,773.19 and 8,040.20

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Solution

The fourth proportional to 11,138.46, 16,773.19 and 8,040.20 is: 12,107.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,138.46 : 16,773.19 = 8,040.20 : x
  2. Step 2: Convert to fraction form
    11,138.46/16,773.19 = 8,040.20/x
  3. Step 3: Cross multiply
    11,138.46x = 16,773.19 × 8,040.20
  4. Step 4: Simplify right side
    11,138.46x = 134,859,802.24
  5. Step 5: Solve for x
    x = 134,859,802.24/11,138.46
  6. Step 6: Final answer
    x = 12,107.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.