Home / 10,881.11-15,019.35-6,168.53

Finding the Fourth Proportional to 10,881.11, 15,019.35 and 6,168.53

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Solution

The fourth proportional to 10,881.11, 15,019.35 and 6,168.53 is: 8,514.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,881.11 : 15,019.35 = 6,168.53 : x
  2. Step 2: Convert to fraction form
    10,881.11/15,019.35 = 6,168.53/x
  3. Step 3: Cross multiply
    10,881.11x = 15,019.35 × 6,168.53
  4. Step 4: Simplify right side
    10,881.11x = 92,647,311.06
  5. Step 5: Solve for x
    x = 92,647,311.06/10,881.11
  6. Step 6: Final answer
    x = 8,514.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.