Home / 8,579.92-11,836.08-5,391.46

Finding the Fourth Proportional to 8,579.92, 11,836.08 and 5,391.46

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Solution

The fourth proportional to 8,579.92, 11,836.08 and 5,391.46 is: 7,437.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,579.92 : 11,836.08 = 5,391.46 : x
  2. Step 2: Convert to fraction form
    8,579.92/11,836.08 = 5,391.46/x
  3. Step 3: Cross multiply
    8,579.92x = 11,836.08 × 5,391.46
  4. Step 4: Simplify right side
    8,579.92x = 63,813,751.88
  5. Step 5: Solve for x
    x = 63,813,751.88/8,579.92
  6. Step 6: Final answer
    x = 7,437.57

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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.