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Finding the Fourth Proportional to 18,096.78, 27,128.15 and 9,329.34

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Solution

The fourth proportional to 18,096.78, 27,128.15 and 9,329.34 is: 13,985.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,096.78 : 27,128.15 = 9,329.34 : x
  2. Step 2: Convert to fraction form
    18,096.78/27,128.15 = 9,329.34/x
  3. Step 3: Cross multiply
    18,096.78x = 27,128.15 × 9,329.34
  4. Step 4: Simplify right side
    18,096.78x = 253,087,734.92
  5. Step 5: Solve for x
    x = 253,087,734.92/18,096.78
  6. Step 6: Final answer
    x = 13,985.24

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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.