Home / 12,722.55-19,083.83-6,161.55

Finding the Fourth Proportional to 12,722.55, 19,083.83 and 6,161.55

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Solution

The fourth proportional to 12,722.55, 19,083.83 and 6,161.55 is: 9,242.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,722.55 : 19,083.83 = 6,161.55 : x
  2. Step 2: Convert to fraction form
    12,722.55/19,083.83 = 6,161.55/x
  3. Step 3: Cross multiply
    12,722.55x = 19,083.83 × 6,161.55
  4. Step 4: Simplify right side
    12,722.55x = 117,585,941.93
  5. Step 5: Solve for x
    x = 117,585,941.93/12,722.55
  6. Step 6: Final answer
    x = 9,242.33

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Similar ratio
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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.