Home / 11,394.80-15,724.44-6,682.20

Finding the Fourth Proportional to 11,394.80, 15,724.44 and 6,682.20

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Solution

The fourth proportional to 11,394.80, 15,724.44 and 6,682.20 is: 9,221.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,394.80 : 15,724.44 = 6,682.20 : x
  2. Step 2: Convert to fraction form
    11,394.80/15,724.44 = 6,682.20/x
  3. Step 3: Cross multiply
    11,394.80x = 15,724.44 × 6,682.20
  4. Step 4: Simplify right side
    11,394.80x = 105,073,852.97
  5. Step 5: Solve for x
    x = 105,073,852.97/11,394.80
  6. Step 6: Final answer
    x = 9,221.21

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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.