Home / 13,186.74-18,202.95-8,651.15

Finding the Fourth Proportional to 13,186.74, 18,202.95 and 8,651.15

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Solution

The fourth proportional to 13,186.74, 18,202.95 and 8,651.15 is: 11,942.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,186.74 : 18,202.95 = 8,651.15 : x
  2. Step 2: Convert to fraction form
    13,186.74/18,202.95 = 8,651.15/x
  3. Step 3: Cross multiply
    13,186.74x = 18,202.95 × 8,651.15
  4. Step 4: Simplify right side
    13,186.74x = 157,476,359.88
  5. Step 5: Solve for x
    x = 157,476,359.88/13,186.74
  6. Step 6: Final answer
    x = 11,942.02

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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.