Home / 18,791.12-25,913.85-11,236.23

Finding the Fourth Proportional to 18,791.12, 25,913.85 and 11,236.23

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Solution

The fourth proportional to 18,791.12, 25,913.85 and 11,236.23 is: 15,495.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,791.12 : 25,913.85 = 11,236.23 : x
  2. Step 2: Convert to fraction form
    18,791.12/25,913.85 = 11,236.23/x
  3. Step 3: Cross multiply
    18,791.12x = 25,913.85 × 11,236.23
  4. Step 4: Simplify right side
    18,791.12x = 291,173,895.37
  5. Step 5: Solve for x
    x = 291,173,895.37/18,791.12
  6. Step 6: Final answer
    x = 15,495.29

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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.