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Finding the Fourth Proportional to 18,666.74, 27,996.87 and 6,354.74

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Solution

The fourth proportional to 18,666.74, 27,996.87 and 6,354.74 is: 9,531.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,666.74 : 27,996.87 = 6,354.74 : x
  2. Step 2: Convert to fraction form
    18,666.74/27,996.87 = 6,354.74/x
  3. Step 3: Cross multiply
    18,666.74x = 27,996.87 × 6,354.74
  4. Step 4: Simplify right side
    18,666.74x = 177,912,829.66
  5. Step 5: Solve for x
    x = 177,912,829.66/18,666.74
  6. Step 6: Final answer
    x = 9,531.01

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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.