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Finding the Fourth Proportional to 8,058.59, 11,121.78 and 7,800.25

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Solution

The fourth proportional to 8,058.59, 11,121.78 and 7,800.25 is: 10,765.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,058.59 : 11,121.78 = 7,800.25 : x
  2. Step 2: Convert to fraction form
    8,058.59/11,121.78 = 7,800.25/x
  3. Step 3: Cross multiply
    8,058.59x = 11,121.78 × 7,800.25
  4. Step 4: Simplify right side
    8,058.59x = 86,752,664.45
  5. Step 5: Solve for x
    x = 86,752,664.45/8,058.59
  6. Step 6: Final answer
    x = 10,765.24

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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.