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Finding the Fourth Proportional to 17,160.20, 25,721.10 and 9,768.20

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Solution

The fourth proportional to 17,160.20, 25,721.10 and 9,768.20 is: 14,641.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,160.20 : 25,721.10 = 9,768.20 : x
  2. Step 2: Convert to fraction form
    17,160.20/25,721.10 = 9,768.20/x
  3. Step 3: Cross multiply
    17,160.20x = 25,721.10 × 9,768.20
  4. Step 4: Simplify right side
    17,160.20x = 251,248,849.02
  5. Step 5: Solve for x
    x = 251,248,849.02/17,160.20
  6. Step 6: Final answer
    x = 14,641.37

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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.