Home / 18,180.90-25,089.21-11,893.14

Finding the Fourth Proportional to 18,180.90, 25,089.21 and 11,893.14

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Solution

The fourth proportional to 18,180.90, 25,089.21 and 11,893.14 is: 16,412.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,180.90 : 25,089.21 = 11,893.14 : x
  2. Step 2: Convert to fraction form
    18,180.90/25,089.21 = 11,893.14/x
  3. Step 3: Cross multiply
    18,180.90x = 25,089.21 × 11,893.14
  4. Step 4: Simplify right side
    18,180.90x = 298,389,487.02
  5. Step 5: Solve for x
    x = 298,389,487.02/18,180.90
  6. Step 6: Final answer
    x = 16,412.25

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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.