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Finding the Fourth Proportional to 11,620.44, 17,419.50 and 7,448.76

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Solution

The fourth proportional to 11,620.44, 17,419.50 and 7,448.76 is: 11,165.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,620.44 : 17,419.50 = 7,448.76 : x
  2. Step 2: Convert to fraction form
    11,620.44/17,419.50 = 7,448.76/x
  3. Step 3: Cross multiply
    11,620.44x = 17,419.50 × 7,448.76
  4. Step 4: Simplify right side
    11,620.44x = 129,753,674.82
  5. Step 5: Solve for x
    x = 129,753,674.82/11,620.44
  6. Step 6: Final answer
    x = 11,165.99

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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.