Home / 10,991.23-15,167.91-5,955.49

Finding the Fourth Proportional to 10,991.23, 15,167.91 and 5,955.49

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Solution

The fourth proportional to 10,991.23, 15,167.91 and 5,955.49 is: 8,218.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,991.23 : 15,167.91 = 5,955.49 : x
  2. Step 2: Convert to fraction form
    10,991.23/15,167.91 = 5,955.49/x
  3. Step 3: Cross multiply
    10,991.23x = 15,167.91 × 5,955.49
  4. Step 4: Simplify right side
    10,991.23x = 90,332,336.33
  5. Step 5: Solve for x
    x = 90,332,336.33/10,991.23
  6. Step 6: Final answer
    x = 8,218.58

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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.