Home / 13,860.55-20,799.03-5,101.62

Finding the Fourth Proportional to 13,860.55, 20,799.03 and 5,101.62

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Solution

The fourth proportional to 13,860.55, 20,799.03 and 5,101.62 is: 7,655.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,860.55 : 20,799.03 = 5,101.62 : x
  2. Step 2: Convert to fraction form
    13,860.55/20,799.03 = 5,101.62/x
  3. Step 3: Cross multiply
    13,860.55x = 20,799.03 × 5,101.62
  4. Step 4: Simplify right side
    13,860.55x = 106,108,747.43
  5. Step 5: Solve for x
    x = 106,108,747.43/13,860.55
  6. Step 6: Final answer
    x = 7,655.45

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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.