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Finding the Fourth Proportional to 18,294.28, 27,440.79 and 7,757.52

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Solution

The fourth proportional to 18,294.28, 27,440.79 and 7,757.52 is: 11,636.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,294.28 : 27,440.79 = 7,757.52 : x
  2. Step 2: Convert to fraction form
    18,294.28/27,440.79 = 7,757.52/x
  3. Step 3: Cross multiply
    18,294.28x = 27,440.79 × 7,757.52
  4. Step 4: Simplify right side
    18,294.28x = 212,872,477.24
  5. Step 5: Solve for x
    x = 212,872,477.24/18,294.28
  6. Step 6: Final answer
    x = 11,636.01

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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.