Home / 8,211.28-11,329.63-6,091.71

Finding the Fourth Proportional to 8,211.28, 11,329.63 and 6,091.71

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Solution

The fourth proportional to 8,211.28, 11,329.63 and 6,091.71 is: 8,405.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,211.28 : 11,329.63 = 6,091.71 : x
  2. Step 2: Convert to fraction form
    8,211.28/11,329.63 = 6,091.71/x
  3. Step 3: Cross multiply
    8,211.28x = 11,329.63 × 6,091.71
  4. Step 4: Simplify right side
    8,211.28x = 69,016,820.37
  5. Step 5: Solve for x
    x = 69,016,820.37/8,211.28
  6. Step 6: Final answer
    x = 8,405.12

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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.