Home / 7,177.58-9,910.60-5,786.54

Finding the Fourth Proportional to 7,177.58, 9,910.60 and 5,786.54

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Solution

The fourth proportional to 7,177.58, 9,910.60 and 5,786.54 is: 7,989.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,177.58 : 9,910.60 = 5,786.54 : x
  2. Step 2: Convert to fraction form
    7,177.58/9,910.60 = 5,786.54/x
  3. Step 3: Cross multiply
    7,177.58x = 9,910.60 × 5,786.54
  4. Step 4: Simplify right side
    7,177.58x = 57,348,083.32
  5. Step 5: Solve for x
    x = 57,348,083.32/7,177.58
  6. Step 6: Final answer
    x = 7,989.89

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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.