Home / 13,346.35-20,015.67-3,985.99

Finding the Fourth Proportional to 13,346.35, 20,015.67 and 3,985.99

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Solution

The fourth proportional to 13,346.35, 20,015.67 and 3,985.99 is: 5,977.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,346.35 : 20,015.67 = 3,985.99 : x
  2. Step 2: Convert to fraction form
    13,346.35/20,015.67 = 3,985.99/x
  3. Step 3: Cross multiply
    13,346.35x = 20,015.67 × 3,985.99
  4. Step 4: Simplify right side
    13,346.35x = 79,782,160.38
  5. Step 5: Solve for x
    x = 79,782,160.38/13,346.35
  6. Step 6: Final answer
    x = 5,977.83

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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.