Home / 18,077.78-27,118.44-4,930.16

Finding the Fourth Proportional to 18,077.78, 27,118.44 and 4,930.16

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Solution

The fourth proportional to 18,077.78, 27,118.44 and 4,930.16 is: 7,395.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,077.78 : 27,118.44 = 4,930.16 : x
  2. Step 2: Convert to fraction form
    18,077.78/27,118.44 = 4,930.16/x
  3. Step 3: Cross multiply
    18,077.78x = 27,118.44 × 4,930.16
  4. Step 4: Simplify right side
    18,077.78x = 133,698,112.56
  5. Step 5: Solve for x
    x = 133,698,112.56/18,077.78
  6. Step 6: Final answer
    x = 7,395.72

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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.