Home / 10,657.40-15,982.70-3,540.33

Finding the Fourth Proportional to 10,657.40, 15,982.70 and 3,540.33

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Solution

The fourth proportional to 10,657.40, 15,982.70 and 3,540.33 is: 5,309.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,657.40 : 15,982.70 = 3,540.33 : x
  2. Step 2: Convert to fraction form
    10,657.40/15,982.70 = 3,540.33/x
  3. Step 3: Cross multiply
    10,657.40x = 15,982.70 × 3,540.33
  4. Step 4: Simplify right side
    10,657.40x = 56,584,014.59
  5. Step 5: Solve for x
    x = 56,584,014.59/10,657.40
  6. Step 6: Final answer
    x = 5,309.37

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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.