Home / 11,186.20-15,435.45-6,935.71

Finding the Fourth Proportional to 11,186.20, 15,435.45 and 6,935.71

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Solution

The fourth proportional to 11,186.20, 15,435.45 and 6,935.71 is: 9,570.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,186.20 : 15,435.45 = 6,935.71 : x
  2. Step 2: Convert to fraction form
    11,186.20/15,435.45 = 6,935.71/x
  3. Step 3: Cross multiply
    11,186.20x = 15,435.45 × 6,935.71
  4. Step 4: Simplify right side
    11,186.20x = 107,055,766.33
  5. Step 5: Solve for x
    x = 107,055,766.33/11,186.20
  6. Step 6: Final answer
    x = 9,570.34

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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.