Home / 8,391.58-11,584.83-5,248.78

Finding the Fourth Proportional to 8,391.58, 11,584.83 and 5,248.78

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Solution

The fourth proportional to 8,391.58, 11,584.83 and 5,248.78 is: 7,246.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,391.58 : 11,584.83 = 5,248.78 : x
  2. Step 2: Convert to fraction form
    8,391.58/11,584.83 = 5,248.78/x
  3. Step 3: Cross multiply
    8,391.58x = 11,584.83 × 5,248.78
  4. Step 4: Simplify right side
    8,391.58x = 60,806,224.01
  5. Step 5: Solve for x
    x = 60,806,224.01/8,391.58
  6. Step 6: Final answer
    x = 7,246.10

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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.