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Finding the Fourth Proportional to 18,294.58, 27,443.49 and 5,147.07

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Solution

The fourth proportional to 18,294.58, 27,443.49 and 5,147.07 is: 7,721.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,294.58 : 27,443.49 = 5,147.07 : x
  2. Step 2: Convert to fraction form
    18,294.58/27,443.49 = 5,147.07/x
  3. Step 3: Cross multiply
    18,294.58x = 27,443.49 × 5,147.07
  4. Step 4: Simplify right side
    18,294.58x = 141,253,564.07
  5. Step 5: Solve for x
    x = 141,253,564.07/18,294.58
  6. Step 6: Final answer
    x = 7,721.06

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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.