Home / 9,911.78-13,677.31-5,932.81

Finding the Fourth Proportional to 9,911.78, 13,677.31 and 5,932.81

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Solution

The fourth proportional to 9,911.78, 13,677.31 and 5,932.81 is: 8,186.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,911.78 : 13,677.31 = 5,932.81 : x
  2. Step 2: Convert to fraction form
    9,911.78/13,677.31 = 5,932.81/x
  3. Step 3: Cross multiply
    9,911.78x = 13,677.31 × 5,932.81
  4. Step 4: Simplify right side
    9,911.78x = 81,144,872.68
  5. Step 5: Solve for x
    x = 81,144,872.68/9,911.78
  6. Step 6: Final answer
    x = 8,186.71

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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.