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Finding the Fourth Proportional to 13,160.82, 19,754.90 and 7,624.97

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Solution

The fourth proportional to 13,160.82, 19,754.90 and 7,624.97 is: 11,445.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,160.82 : 19,754.90 = 7,624.97 : x
  2. Step 2: Convert to fraction form
    13,160.82/19,754.90 = 7,624.97/x
  3. Step 3: Cross multiply
    13,160.82x = 19,754.90 × 7,624.97
  4. Step 4: Simplify right side
    13,160.82x = 150,630,519.85
  5. Step 5: Solve for x
    x = 150,630,519.85/13,160.82
  6. Step 6: Final answer
    x = 11,445.37

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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.