Home / 12,102.26-18,139.75-6,162.47

Finding the Fourth Proportional to 12,102.26, 18,139.75 and 6,162.47

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Solution

The fourth proportional to 12,102.26, 18,139.75 and 6,162.47 is: 9,236.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,102.26 : 18,139.75 = 6,162.47 : x
  2. Step 2: Convert to fraction form
    12,102.26/18,139.75 = 6,162.47/x
  3. Step 3: Cross multiply
    12,102.26x = 18,139.75 × 6,162.47
  4. Step 4: Simplify right side
    12,102.26x = 111,785,665.18
  5. Step 5: Solve for x
    x = 111,785,665.18/12,102.26
  6. Step 6: Final answer
    x = 9,236.76

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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.