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Finding the Fourth Proportional to 15,135.56, 22,707.89 and 7,745.17

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Solution

The fourth proportional to 15,135.56, 22,707.89 and 7,745.17 is: 11,620.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,135.56 : 22,707.89 = 7,745.17 : x
  2. Step 2: Convert to fraction form
    15,135.56/22,707.89 = 7,745.17/x
  3. Step 3: Cross multiply
    15,135.56x = 22,707.89 × 7,745.17
  4. Step 4: Simplify right side
    15,135.56x = 175,876,488.08
  5. Step 5: Solve for x
    x = 175,876,488.08/15,135.56
  6. Step 6: Final answer
    x = 11,620.09

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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.