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Finding the Fourth Proportional to 18,246.78, 27,366.93 and 5,100.48

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Solution

The fourth proportional to 18,246.78, 27,366.93 and 5,100.48 is: 7,649.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,246.78 : 27,366.93 = 5,100.48 : x
  2. Step 2: Convert to fraction form
    18,246.78/27,366.93 = 5,100.48/x
  3. Step 3: Cross multiply
    18,246.78x = 27,366.93 × 5,100.48
  4. Step 4: Simplify right side
    18,246.78x = 139,584,479.13
  5. Step 5: Solve for x
    x = 139,584,479.13/18,246.78
  6. Step 6: Final answer
    x = 7,649.81

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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.