Home / 18,666.18-27,999.18-5,518.62

Finding the Fourth Proportional to 18,666.18, 27,999.18 and 5,518.62

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Solution

The fourth proportional to 18,666.18, 27,999.18 and 5,518.62 is: 8,277.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,666.18 : 27,999.18 = 5,518.62 : x
  2. Step 2: Convert to fraction form
    18,666.18/27,999.18 = 5,518.62/x
  3. Step 3: Cross multiply
    18,666.18x = 27,999.18 × 5,518.62
  4. Step 4: Simplify right side
    18,666.18x = 154,516,834.73
  5. Step 5: Solve for x
    x = 154,516,834.73/18,666.18
  6. Step 6: Final answer
    x = 8,277.90

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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.