Home / 12,151.08-18,236.34-6,309.36

Finding the Fourth Proportional to 12,151.08, 18,236.34 and 6,309.36

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Solution

The fourth proportional to 12,151.08, 18,236.34 and 6,309.36 is: 9,469.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,151.08 : 18,236.34 = 6,309.36 : x
  2. Step 2: Convert to fraction form
    12,151.08/18,236.34 = 6,309.36/x
  3. Step 3: Cross multiply
    12,151.08x = 18,236.34 × 6,309.36
  4. Step 4: Simplify right side
    12,151.08x = 115,059,634.14
  5. Step 5: Solve for x
    x = 115,059,634.14/12,151.08
  6. Step 6: Final answer
    x = 9,469.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.