Home / 8,121.76-11,206.11-4,584.28

Finding the Fourth Proportional to 8,121.76, 11,206.11 and 4,584.28

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Solution

The fourth proportional to 8,121.76, 11,206.11 and 4,584.28 is: 6,325.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,121.76 : 11,206.11 = 4,584.28 : x
  2. Step 2: Convert to fraction form
    8,121.76/11,206.11 = 4,584.28/x
  3. Step 3: Cross multiply
    8,121.76x = 11,206.11 × 4,584.28
  4. Step 4: Simplify right side
    8,121.76x = 51,371,945.95
  5. Step 5: Solve for x
    x = 51,371,945.95/8,121.76
  6. Step 6: Final answer
    x = 6,325.22

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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.