Home / 18,108.54-27,168.71-8,749.62

Finding the Fourth Proportional to 18,108.54, 27,168.71 and 8,749.62

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Solution

The fourth proportional to 18,108.54, 27,168.71 and 8,749.62 is: 13,127.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,108.54 : 27,168.71 = 8,749.62 : x
  2. Step 2: Convert to fraction form
    18,108.54/27,168.71 = 8,749.62/x
  3. Step 3: Cross multiply
    18,108.54x = 27,168.71 × 8,749.62
  4. Step 4: Simplify right side
    18,108.54x = 237,715,844.64
  5. Step 5: Solve for x
    x = 237,715,844.64/18,108.54
  6. Step 6: Final answer
    x = 13,127.28

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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.