Home / 18,618.54-27,929.87-5,471.94

Finding the Fourth Proportional to 18,618.54, 27,929.87 and 5,471.94

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Solution

The fourth proportional to 18,618.54, 27,929.87 and 5,471.94 is: 8,208.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,618.54 : 27,929.87 = 5,471.94 : x
  2. Step 2: Convert to fraction form
    18,618.54/27,929.87 = 5,471.94/x
  3. Step 3: Cross multiply
    18,618.54x = 27,929.87 × 5,471.94
  4. Step 4: Simplify right side
    18,618.54x = 152,830,545.49
  5. Step 5: Solve for x
    x = 152,830,545.49/18,618.54
  6. Step 6: Final answer
    x = 8,208.51

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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.