Home / 16,220.73-22,380.78-9,145.79

Finding the Fourth Proportional to 16,220.73, 22,380.78 and 9,145.79

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Solution

The fourth proportional to 16,220.73, 22,380.78 and 9,145.79 is: 12,619.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,220.73 : 22,380.78 = 9,145.79 : x
  2. Step 2: Convert to fraction form
    16,220.73/22,380.78 = 9,145.79/x
  3. Step 3: Cross multiply
    16,220.73x = 22,380.78 × 9,145.79
  4. Step 4: Simplify right side
    16,220.73x = 204,689,802.01
  5. Step 5: Solve for x
    x = 204,689,802.01/16,220.73
  6. Step 6: Final answer
    x = 12,619.03

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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.