Home / 10,511.27-15,767.91-3,489.80

Finding the Fourth Proportional to 10,511.27, 15,767.91 and 3,489.80

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Solution

The fourth proportional to 10,511.27, 15,767.91 and 3,489.80 is: 5,235.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,511.27 : 15,767.91 = 3,489.80 : x
  2. Step 2: Convert to fraction form
    10,511.27/15,767.91 = 3,489.80/x
  3. Step 3: Cross multiply
    10,511.27x = 15,767.91 × 3,489.80
  4. Step 4: Simplify right side
    10,511.27x = 55,026,852.32
  5. Step 5: Solve for x
    x = 55,026,852.32/10,511.27
  6. Step 6: Final answer
    x = 5,235.03

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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.