Home / 18,825.74-25,996.80-12,123.14

Finding the Fourth Proportional to 18,825.74, 25,996.80 and 12,123.14

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Solution

The fourth proportional to 18,825.74, 25,996.80 and 12,123.14 is: 16,741.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,825.74 : 25,996.80 = 12,123.14 : x
  2. Step 2: Convert to fraction form
    18,825.74/25,996.80 = 12,123.14/x
  3. Step 3: Cross multiply
    18,825.74x = 25,996.80 × 12,123.14
  4. Step 4: Simplify right side
    18,825.74x = 315,162,845.95
  5. Step 5: Solve for x
    x = 315,162,845.95/18,825.74
  6. Step 6: Final answer
    x = 16,741.06

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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.