Home / 18,252.69-27,374.85-5,105.99

Finding the Fourth Proportional to 18,252.69, 27,374.85 and 5,105.99

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Solution

The fourth proportional to 18,252.69, 27,374.85 and 5,105.99 is: 7,657.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,252.69 : 27,374.85 = 5,105.99 : x
  2. Step 2: Convert to fraction form
    18,252.69/27,374.85 = 5,105.99/x
  3. Step 3: Cross multiply
    18,252.69x = 27,374.85 × 5,105.99
  4. Step 4: Simplify right side
    18,252.69x = 139,775,710.35
  5. Step 5: Solve for x
    x = 139,775,710.35/18,252.69
  6. Step 6: Final answer
    x = 7,657.81

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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.