Home / 18,220.68-25,150.83-10,669.43

Finding the Fourth Proportional to 18,220.68, 25,150.83 and 10,669.43

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Solution

The fourth proportional to 18,220.68, 25,150.83 and 10,669.43 is: 14,727.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,220.68 : 25,150.83 = 10,669.43 : x
  2. Step 2: Convert to fraction form
    18,220.68/25,150.83 = 10,669.43/x
  3. Step 3: Cross multiply
    18,220.68x = 25,150.83 × 10,669.43
  4. Step 4: Simplify right side
    18,220.68x = 268,345,042.99
  5. Step 5: Solve for x
    x = 268,345,042.99/18,220.68
  6. Step 6: Final answer
    x = 14,727.50

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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.