Home / 18,729.90-25,839.09-12,348.27

Finding the Fourth Proportional to 18,729.90, 25,839.09 and 12,348.27

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Solution

The fourth proportional to 18,729.90, 25,839.09 and 12,348.27 is: 17,035.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,729.90 : 25,839.09 = 12,348.27 : x
  2. Step 2: Convert to fraction form
    18,729.90/25,839.09 = 12,348.27/x
  3. Step 3: Cross multiply
    18,729.90x = 25,839.09 × 12,348.27
  4. Step 4: Simplify right side
    18,729.90x = 319,068,059.87
  5. Step 5: Solve for x
    x = 319,068,059.87/18,729.90
  6. Step 6: Final answer
    x = 17,035.22

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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.