Home / 8,083.96-12,108.18-6,681.40

Finding the Fourth Proportional to 8,083.96, 12,108.18 and 6,681.40

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Solution

The fourth proportional to 8,083.96, 12,108.18 and 6,681.40 is: 10,007.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,083.96 : 12,108.18 = 6,681.40 : x
  2. Step 2: Convert to fraction form
    8,083.96/12,108.18 = 6,681.40/x
  3. Step 3: Cross multiply
    8,083.96x = 12,108.18 × 6,681.40
  4. Step 4: Simplify right side
    8,083.96x = 80,899,593.85
  5. Step 5: Solve for x
    x = 80,899,593.85/8,083.96
  6. Step 6: Final answer
    x = 10,007.42

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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.