Home / 14,682.06-20,243.79-11,139.12

Finding the Fourth Proportional to 14,682.06, 20,243.79 and 11,139.12

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Solution

The fourth proportional to 14,682.06, 20,243.79 and 11,139.12 is: 15,358.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,682.06 : 20,243.79 = 11,139.12 : x
  2. Step 2: Convert to fraction form
    14,682.06/20,243.79 = 11,139.12/x
  3. Step 3: Cross multiply
    14,682.06x = 20,243.79 × 11,139.12
  4. Step 4: Simplify right side
    14,682.06x = 225,498,006.06
  5. Step 5: Solve for x
    x = 225,498,006.06/14,682.06
  6. Step 6: Final answer
    x = 15,358.74

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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.