Home / 8,103.51-12,135.66-6,706.56

Finding the Fourth Proportional to 8,103.51, 12,135.66 and 6,706.56

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Solution

The fourth proportional to 8,103.51, 12,135.66 and 6,706.56 is: 10,043.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,103.51 : 12,135.66 = 6,706.56 : x
  2. Step 2: Convert to fraction form
    8,103.51/12,135.66 = 6,706.56/x
  3. Step 3: Cross multiply
    8,103.51x = 12,135.66 × 6,706.56
  4. Step 4: Simplify right side
    8,103.51x = 81,388,531.93
  5. Step 5: Solve for x
    x = 81,388,531.93/8,103.51
  6. Step 6: Final answer
    x = 10,043.62

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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.