Home / 18,666.26-27,999.76-5,518.62

Finding the Fourth Proportional to 18,666.26, 27,999.76 and 5,518.62

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Solution

The fourth proportional to 18,666.26, 27,999.76 and 5,518.62 is: 8,278.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,666.26 : 27,999.76 = 5,518.62 : x
  2. Step 2: Convert to fraction form
    18,666.26/27,999.76 = 5,518.62/x
  3. Step 3: Cross multiply
    18,666.26x = 27,999.76 × 5,518.62
  4. Step 4: Simplify right side
    18,666.26x = 154,520,035.53
  5. Step 5: Solve for x
    x = 154,520,035.53/18,666.26
  6. Step 6: Final answer
    x = 8,278.04

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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.