Home / 11,511.57-17,267.46-3,720.39

Finding the Fourth Proportional to 11,511.57, 17,267.46 and 3,720.39

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Solution

The fourth proportional to 11,511.57, 17,267.46 and 3,720.39 is: 5,580.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,511.57 : 17,267.46 = 3,720.39 : x
  2. Step 2: Convert to fraction form
    11,511.57/17,267.46 = 3,720.39/x
  3. Step 3: Cross multiply
    11,511.57x = 17,267.46 × 3,720.39
  4. Step 4: Simplify right side
    11,511.57x = 64,241,685.51
  5. Step 5: Solve for x
    x = 64,241,685.51/11,511.57
  6. Step 6: Final answer
    x = 5,580.62

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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.