Home / 13,808.11-20,697.27-6,779.95

Finding the Fourth Proportional to 13,808.11, 20,697.27 and 6,779.95

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Solution

The fourth proportional to 13,808.11, 20,697.27 and 6,779.95 is: 10,162.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,808.11 : 20,697.27 = 6,779.95 : x
  2. Step 2: Convert to fraction form
    13,808.11/20,697.27 = 6,779.95/x
  3. Step 3: Cross multiply
    13,808.11x = 20,697.27 × 6,779.95
  4. Step 4: Simplify right side
    13,808.11x = 140,326,455.74
  5. Step 5: Solve for x
    x = 140,326,455.74/13,808.11
  6. Step 6: Final answer
    x = 10,162.61

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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.