Home / 8,772.19-12,103.70-5,584.33

Finding the Fourth Proportional to 8,772.19, 12,103.70 and 5,584.33

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Solution

The fourth proportional to 8,772.19, 12,103.70 and 5,584.33 is: 7,705.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,772.19 : 12,103.70 = 5,584.33 : x
  2. Step 2: Convert to fraction form
    8,772.19/12,103.70 = 5,584.33/x
  3. Step 3: Cross multiply
    8,772.19x = 12,103.70 × 5,584.33
  4. Step 4: Simplify right side
    8,772.19x = 67,591,042.23
  5. Step 5: Solve for x
    x = 67,591,042.23/8,772.19
  6. Step 6: Final answer
    x = 7,705.15

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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.