Home / 11,405.10-17,109.45-3,614.70

Finding the Fourth Proportional to 11,405.10, 17,109.45 and 3,614.70

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Solution

The fourth proportional to 11,405.10, 17,109.45 and 3,614.70 is: 5,422.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,405.10 : 17,109.45 = 3,614.70 : x
  2. Step 2: Convert to fraction form
    11,405.10/17,109.45 = 3,614.70/x
  3. Step 3: Cross multiply
    11,405.10x = 17,109.45 × 3,614.70
  4. Step 4: Simplify right side
    11,405.10x = 61,845,528.92
  5. Step 5: Solve for x
    x = 61,845,528.92/11,405.10
  6. Step 6: Final answer
    x = 5,422.62

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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.