Home / 11,091.92-15,304.88-6,311.10

Finding the Fourth Proportional to 11,091.92, 15,304.88 and 6,311.10

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Solution

The fourth proportional to 11,091.92, 15,304.88 and 6,311.10 is: 8,708.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,091.92 : 15,304.88 = 6,311.10 : x
  2. Step 2: Convert to fraction form
    11,091.92/15,304.88 = 6,311.10/x
  3. Step 3: Cross multiply
    11,091.92x = 15,304.88 × 6,311.10
  4. Step 4: Simplify right side
    11,091.92x = 96,590,665.84
  5. Step 5: Solve for x
    x = 96,590,665.84/11,091.92
  6. Step 6: Final answer
    x = 8,708.20

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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.