Home / 18,107.72-24,996.84-11,403.20

Finding the Fourth Proportional to 18,107.72, 24,996.84 and 11,403.20

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Solution

The fourth proportional to 18,107.72, 24,996.84 and 11,403.20 is: 15,741.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,107.72 : 24,996.84 = 11,403.20 : x
  2. Step 2: Convert to fraction form
    18,107.72/24,996.84 = 11,403.20/x
  3. Step 3: Cross multiply
    18,107.72x = 24,996.84 × 11,403.20
  4. Step 4: Simplify right side
    18,107.72x = 285,043,845.01
  5. Step 5: Solve for x
    x = 285,043,845.01/18,107.72
  6. Step 6: Final answer
    x = 15,741.57

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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.