Home / 11,191.13-15,451.34-6,943.92

Finding the Fourth Proportional to 11,191.13, 15,451.34 and 6,943.92

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Solution

The fourth proportional to 11,191.13, 15,451.34 and 6,943.92 is: 9,587.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,191.13 : 15,451.34 = 6,943.92 : x
  2. Step 2: Convert to fraction form
    11,191.13/15,451.34 = 6,943.92/x
  3. Step 3: Cross multiply
    11,191.13x = 15,451.34 × 6,943.92
  4. Step 4: Simplify right side
    11,191.13x = 107,292,868.85
  5. Step 5: Solve for x
    x = 107,292,868.85/11,191.13
  6. Step 6: Final answer
    x = 9,587.31

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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.