Home / 11,191.33-15,443.35-6,717.57

Finding the Fourth Proportional to 11,191.33, 15,443.35 and 6,717.57

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Solution

The fourth proportional to 11,191.33, 15,443.35 and 6,717.57 is: 9,269.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,191.33 : 15,443.35 = 6,717.57 : x
  2. Step 2: Convert to fraction form
    11,191.33/15,443.35 = 6,717.57/x
  3. Step 3: Cross multiply
    11,191.33x = 15,443.35 × 6,717.57
  4. Step 4: Simplify right side
    11,191.33x = 103,741,784.66
  5. Step 5: Solve for x
    x = 103,741,784.66/11,191.33
  6. Step 6: Final answer
    x = 9,269.84

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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.