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Finding the Fourth Proportional to 18,522.41, 27,783.61 and 8,668.61

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Solution

The fourth proportional to 18,522.41, 27,783.61 and 8,668.61 is: 13,002.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,522.41 : 27,783.61 = 8,668.61 : x
  2. Step 2: Convert to fraction form
    18,522.41/27,783.61 = 8,668.61/x
  3. Step 3: Cross multiply
    18,522.41x = 27,783.61 × 8,668.61
  4. Step 4: Simplify right side
    18,522.41x = 240,845,238.87
  5. Step 5: Solve for x
    x = 240,845,238.87/18,522.41
  6. Step 6: Final answer
    x = 13,002.91

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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.