Home / 18,220.88-25,151.11-10,669.64

Finding the Fourth Proportional to 18,220.88, 25,151.11 and 10,669.64

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Solution

The fourth proportional to 18,220.88, 25,151.11 and 10,669.64 is: 14,727.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,220.88 : 25,151.11 = 10,669.64 : x
  2. Step 2: Convert to fraction form
    18,220.88/25,151.11 = 10,669.64/x
  3. Step 3: Cross multiply
    18,220.88x = 25,151.11 × 10,669.64
  4. Step 4: Simplify right side
    18,220.88x = 268,353,278.35
  5. Step 5: Solve for x
    x = 268,353,278.35/18,220.88
  6. Step 6: Final answer
    x = 14,727.79

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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.