Home / 10,986.78-15,161.75-5,950.96

Finding the Fourth Proportional to 10,986.78, 15,161.75 and 5,950.96

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Solution

The fourth proportional to 10,986.78, 15,161.75 and 5,950.96 is: 8,212.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,986.78 : 15,161.75 = 5,950.96 : x
  2. Step 2: Convert to fraction form
    10,986.78/15,161.75 = 5,950.96/x
  3. Step 3: Cross multiply
    10,986.78x = 15,161.75 × 5,950.96
  4. Step 4: Simplify right side
    10,986.78x = 90,226,944.75
  5. Step 5: Solve for x
    x = 90,226,944.75/10,986.78
  6. Step 6: Final answer
    x = 8,212.32

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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.