Home / 18,824.55-28,222.78-11,326.35

Finding the Fourth Proportional to 18,824.55, 28,222.78 and 11,326.35

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Solution

The fourth proportional to 18,824.55, 28,222.78 and 11,326.35 is: 16,981.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,824.55 : 28,222.78 = 11,326.35 : x
  2. Step 2: Convert to fraction form
    18,824.55/28,222.78 = 11,326.35/x
  3. Step 3: Cross multiply
    18,824.55x = 28,222.78 × 11,326.35
  4. Step 4: Simplify right side
    18,824.55x = 319,661,027.62
  5. Step 5: Solve for x
    x = 319,661,027.62/18,824.55
  6. Step 6: Final answer
    x = 16,981.07

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1.5x scale

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.