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Finding the Fourth Proportional to 18,144.26, 27,203.63 and 7,041.59

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Solution

The fourth proportional to 18,144.26, 27,203.63 and 7,041.59 is: 10,557.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,144.26 : 27,203.63 = 7,041.59 : x
  2. Step 2: Convert to fraction form
    18,144.26/27,203.63 = 7,041.59/x
  3. Step 3: Cross multiply
    18,144.26x = 27,203.63 × 7,041.59
  4. Step 4: Simplify right side
    18,144.26x = 191,556,637.75
  5. Step 5: Solve for x
    x = 191,556,637.75/18,144.26
  6. Step 6: Final answer
    x = 10,557.43

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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.