Home / 18,353.42-25,335.48-12,393.18

Finding the Fourth Proportional to 18,353.42, 25,335.48 and 12,393.18

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Solution

The fourth proportional to 18,353.42, 25,335.48 and 12,393.18 is: 17,107.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,353.42 : 25,335.48 = 12,393.18 : x
  2. Step 2: Convert to fraction form
    18,353.42/25,335.48 = 12,393.18/x
  3. Step 3: Cross multiply
    18,353.42x = 25,335.48 × 12,393.18
  4. Step 4: Simplify right side
    18,353.42x = 313,987,164.03
  5. Step 5: Solve for x
    x = 313,987,164.03/18,353.42
  6. Step 6: Final answer
    x = 17,107.83

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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.