Home / 8,759.28-12,083.52-5,220.48

Finding the Fourth Proportional to 8,759.28, 12,083.52 and 5,220.48

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Solution

The fourth proportional to 8,759.28, 12,083.52 and 5,220.48 is: 7,201.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,759.28 : 12,083.52 = 5,220.48 : x
  2. Step 2: Convert to fraction form
    8,759.28/12,083.52 = 5,220.48/x
  3. Step 3: Cross multiply
    8,759.28x = 12,083.52 × 5,220.48
  4. Step 4: Simplify right side
    8,759.28x = 63,081,774.49
  5. Step 5: Solve for x
    x = 63,081,774.49/8,759.28
  6. Step 6: Final answer
    x = 7,201.71

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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.