Home / 11,091.56-15,306.13-6,311.39

Finding the Fourth Proportional to 11,091.56, 15,306.13 and 6,311.39

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Solution

The fourth proportional to 11,091.56, 15,306.13 and 6,311.39 is: 8,709.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,091.56 : 15,306.13 = 6,311.39 : x
  2. Step 2: Convert to fraction form
    11,091.56/15,306.13 = 6,311.39/x
  3. Step 3: Cross multiply
    11,091.56x = 15,306.13 × 6,311.39
  4. Step 4: Simplify right side
    11,091.56x = 96,603,016.32
  5. Step 5: Solve for x
    x = 96,603,016.32/11,091.56
  6. Step 6: Final answer
    x = 8,709.60

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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.