Home / 13,458.11-20,188.19-4,098.92

Finding the Fourth Proportional to 13,458.11, 20,188.19 and 4,098.92

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Solution

The fourth proportional to 13,458.11, 20,188.19 and 4,098.92 is: 6,148.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,458.11 : 20,188.19 = 4,098.92 : x
  2. Step 2: Convert to fraction form
    13,458.11/20,188.19 = 4,098.92/x
  3. Step 3: Cross multiply
    13,458.11x = 20,188.19 × 4,098.92
  4. Step 4: Simplify right side
    13,458.11x = 82,749,775.75
  5. Step 5: Solve for x
    x = 82,749,775.75/13,458.11
  6. Step 6: Final answer
    x = 6,148.69

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1.5x scale

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.