Home / 13,390.11-20,090.03-4,625.91

Finding the Fourth Proportional to 13,390.11, 20,090.03 and 4,625.91

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Solution

The fourth proportional to 13,390.11, 20,090.03 and 4,625.91 is: 6,940.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,390.11 : 20,090.03 = 4,625.91 : x
  2. Step 2: Convert to fraction form
    13,390.11/20,090.03 = 4,625.91/x
  3. Step 3: Cross multiply
    13,390.11x = 20,090.03 × 4,625.91
  4. Step 4: Simplify right side
    13,390.11x = 92,934,647.55
  5. Step 5: Solve for x
    x = 92,934,647.55/13,390.11
  6. Step 6: Final answer
    x = 6,940.54

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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.