Home / 13,666.62-18,861.29-8,001.05

Finding the Fourth Proportional to 13,666.62, 18,861.29 and 8,001.05

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Solution

The fourth proportional to 13,666.62, 18,861.29 and 8,001.05 is: 11,042.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,666.62 : 18,861.29 = 8,001.05 : x
  2. Step 2: Convert to fraction form
    13,666.62/18,861.29 = 8,001.05/x
  3. Step 3: Cross multiply
    13,666.62x = 18,861.29 × 8,001.05
  4. Step 4: Simplify right side
    13,666.62x = 150,910,020.05
  5. Step 5: Solve for x
    x = 150,910,020.05/13,666.62
  6. Step 6: Final answer
    x = 11,042.23

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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.