Home / 13,788.12-20,675.96-3,925.02

Finding the Fourth Proportional to 13,788.12, 20,675.96 and 3,925.02

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Solution

The fourth proportional to 13,788.12, 20,675.96 and 3,925.02 is: 5,885.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,788.12 : 20,675.96 = 3,925.02 : x
  2. Step 2: Convert to fraction form
    13,788.12/20,675.96 = 3,925.02/x
  3. Step 3: Cross multiply
    13,788.12x = 20,675.96 × 3,925.02
  4. Step 4: Simplify right side
    13,788.12x = 81,153,556.52
  5. Step 5: Solve for x
    x = 81,153,556.52/13,788.12
  6. Step 6: Final answer
    x = 5,885.76

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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.