Home / 13,337.38-18,391.80-11,455.22

Finding the Fourth Proportional to 13,337.38, 18,391.80 and 11,455.22

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Solution

The fourth proportional to 13,337.38, 18,391.80 and 11,455.22 is: 15,796.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,337.38 : 18,391.80 = 11,455.22 : x
  2. Step 2: Convert to fraction form
    13,337.38/18,391.80 = 11,455.22/x
  3. Step 3: Cross multiply
    13,337.38x = 18,391.80 × 11,455.22
  4. Step 4: Simplify right side
    13,337.38x = 210,682,115.20
  5. Step 5: Solve for x
    x = 210,682,115.20/13,337.38
  6. Step 6: Final answer
    x = 15,796.36

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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.