Home / 13,411.44-20,115.27-3,551.58

Finding the Fourth Proportional to 13,411.44, 20,115.27 and 3,551.58

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Solution

The fourth proportional to 13,411.44, 20,115.27 and 3,551.58 is: 5,326.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,411.44 : 20,115.27 = 3,551.58 : x
  2. Step 2: Convert to fraction form
    13,411.44/20,115.27 = 3,551.58/x
  3. Step 3: Cross multiply
    13,411.44x = 20,115.27 × 3,551.58
  4. Step 4: Simplify right side
    13,411.44x = 71,440,990.63
  5. Step 5: Solve for x
    x = 71,440,990.63/13,411.44
  6. Step 6: Final answer
    x = 5,326.87

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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.