Home / 11,288.81-16,895.44-11,139.46

Finding the Fourth Proportional to 11,288.81, 16,895.44 and 11,139.46

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Solution

The fourth proportional to 11,288.81, 16,895.44 and 11,139.46 is: 16,671.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,288.81 : 16,895.44 = 11,139.46 : x
  2. Step 2: Convert to fraction form
    11,288.81/16,895.44 = 11,139.46/x
  3. Step 3: Cross multiply
    11,288.81x = 16,895.44 × 11,139.46
  4. Step 4: Simplify right side
    11,288.81x = 188,206,035.82
  5. Step 5: Solve for x
    x = 188,206,035.82/11,288.81
  6. Step 6: Final answer
    x = 16,671.91

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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.