Home / 13,793.32-20,689.98-3,405.07

Finding the Fourth Proportional to 13,793.32, 20,689.98 and 3,405.07

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Solution

The fourth proportional to 13,793.32, 20,689.98 and 3,405.07 is: 5,107.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,793.32 : 20,689.98 = 3,405.07 : x
  2. Step 2: Convert to fraction form
    13,793.32/20,689.98 = 3,405.07/x
  3. Step 3: Cross multiply
    13,793.32x = 20,689.98 × 3,405.07
  4. Step 4: Simplify right side
    13,793.32x = 70,450,830.20
  5. Step 5: Solve for x
    x = 70,450,830.20/13,793.32
  6. Step 6: Final answer
    x = 5,107.61

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Similar ratio
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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.