Home / 13,236.15-18,265.92-7,186.41

Finding the Fourth Proportional to 13,236.15, 18,265.92 and 7,186.41

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Solution

The fourth proportional to 13,236.15, 18,265.92 and 7,186.41 is: 9,917.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,236.15 : 18,265.92 = 7,186.41 : x
  2. Step 2: Convert to fraction form
    13,236.15/18,265.92 = 7,186.41/x
  3. Step 3: Cross multiply
    13,236.15x = 18,265.92 × 7,186.41
  4. Step 4: Simplify right side
    13,236.15x = 131,266,390.15
  5. Step 5: Solve for x
    x = 131,266,390.15/13,236.15
  6. Step 6: Final answer
    x = 9,917.26

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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.