Home / 10,986.95-15,161.91-5,951.06

Finding the Fourth Proportional to 10,986.95, 15,161.91 and 5,951.06

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Solution

The fourth proportional to 10,986.95, 15,161.91 and 5,951.06 is: 8,212.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,986.95 : 15,161.91 = 5,951.06 : x
  2. Step 2: Convert to fraction form
    10,986.95/15,161.91 = 5,951.06/x
  3. Step 3: Cross multiply
    10,986.95x = 15,161.91 × 5,951.06
  4. Step 4: Simplify right side
    10,986.95x = 90,229,436.12
  5. Step 5: Solve for x
    x = 90,229,436.12/10,986.95
  6. Step 6: Final answer
    x = 8,212.42

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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.