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Finding the Fourth Proportional to 8,480.27, 11,701.27 and 5,120.84

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Solution

The fourth proportional to 8,480.27, 11,701.27 and 5,120.84 is: 7,065.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,480.27 : 11,701.27 = 5,120.84 : x
  2. Step 2: Convert to fraction form
    8,480.27/11,701.27 = 5,120.84/x
  3. Step 3: Cross multiply
    8,480.27x = 11,701.27 × 5,120.84
  4. Step 4: Simplify right side
    8,480.27x = 59,920,247.36
  5. Step 5: Solve for x
    x = 59,920,247.36/8,480.27
  6. Step 6: Final answer
    x = 7,065.84

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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.