Home / 18,665.16-27,999.29-5,518.11

Finding the Fourth Proportional to 18,665.16, 27,999.29 and 5,518.11

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Solution

The fourth proportional to 18,665.16, 27,999.29 and 5,518.11 is: 8,277.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,665.16 : 27,999.29 = 5,518.11 : x
  2. Step 2: Convert to fraction form
    18,665.16/27,999.29 = 5,518.11/x
  3. Step 3: Cross multiply
    18,665.16x = 27,999.29 × 5,518.11
  4. Step 4: Simplify right side
    18,665.16x = 154,503,162.14
  5. Step 5: Solve for x
    x = 154,503,162.14/18,665.16
  6. Step 6: Final answer
    x = 8,277.62

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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.