Home / 11,552.78-15,945.46-9,661.08

Finding the Fourth Proportional to 11,552.78, 15,945.46 and 9,661.08

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Solution

The fourth proportional to 11,552.78, 15,945.46 and 9,661.08 is: 13,334.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,552.78 : 15,945.46 = 9,661.08 : x
  2. Step 2: Convert to fraction form
    11,552.78/15,945.46 = 9,661.08/x
  3. Step 3: Cross multiply
    11,552.78x = 15,945.46 × 9,661.08
  4. Step 4: Simplify right side
    11,552.78x = 154,050,340.54
  5. Step 5: Solve for x
    x = 154,050,340.54/11,552.78
  6. Step 6: Final answer
    x = 13,334.48

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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.