Home / 12,194.28-18,188.40-11,825.10

Finding the Fourth Proportional to 12,194.28, 18,188.40 and 11,825.10

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Solution

The fourth proportional to 12,194.28, 18,188.40 and 11,825.10 is: 17,637.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,194.28 : 18,188.40 = 11,825.10 : x
  2. Step 2: Convert to fraction form
    12,194.28/18,188.40 = 11,825.10/x
  3. Step 3: Cross multiply
    12,194.28x = 18,188.40 × 11,825.10
  4. Step 4: Simplify right side
    12,194.28x = 215,079,648.84
  5. Step 5: Solve for x
    x = 215,079,648.84/12,194.28
  6. Step 6: Final answer
    x = 17,637.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.