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Finding the Fourth Proportional to 18,144.28, 27,222.48 and 7,051.33

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Solution

The fourth proportional to 18,144.28, 27,222.48 and 7,051.33 is: 10,579.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,144.28 : 27,222.48 = 7,051.33 : x
  2. Step 2: Convert to fraction form
    18,144.28/27,222.48 = 7,051.33/x
  3. Step 3: Cross multiply
    18,144.28x = 27,222.48 × 7,051.33
  4. Step 4: Simplify right side
    18,144.28x = 191,954,689.90
  5. Step 5: Solve for x
    x = 191,954,689.90/18,144.28
  6. Step 6: Final answer
    x = 10,579.35

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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.