Home / 11,149.74-15,383.61-6,669.54

Finding the Fourth Proportional to 11,149.74, 15,383.61 and 6,669.54

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Solution

The fourth proportional to 11,149.74, 15,383.61 and 6,669.54 is: 9,202.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,149.74 : 15,383.61 = 6,669.54 : x
  2. Step 2: Convert to fraction form
    11,149.74/15,383.61 = 6,669.54/x
  3. Step 3: Cross multiply
    11,149.74x = 15,383.61 × 6,669.54
  4. Step 4: Simplify right side
    11,149.74x = 102,601,602.24
  5. Step 5: Solve for x
    x = 102,601,602.24/11,149.74
  6. Step 6: Final answer
    x = 9,202.15

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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.