Home / 13,414.08-20,121.54-6,394.85

Finding the Fourth Proportional to 13,414.08, 20,121.54 and 6,394.85

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Solution

The fourth proportional to 13,414.08, 20,121.54 and 6,394.85 is: 9,592.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,414.08 : 20,121.54 = 6,394.85 : x
  2. Step 2: Convert to fraction form
    13,414.08/20,121.54 = 6,394.85/x
  3. Step 3: Cross multiply
    13,414.08x = 20,121.54 × 6,394.85
  4. Step 4: Simplify right side
    13,414.08x = 128,674,129.46
  5. Step 5: Solve for x
    x = 128,674,129.46/13,414.08
  6. Step 6: Final answer
    x = 9,592.47

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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.