Home / 13,626.38-20,428.53-4,261.58

Finding the Fourth Proportional to 13,626.38, 20,428.53 and 4,261.58

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Solution

The fourth proportional to 13,626.38, 20,428.53 and 4,261.58 is: 6,388.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,626.38 : 20,428.53 = 4,261.58 : x
  2. Step 2: Convert to fraction form
    13,626.38/20,428.53 = 4,261.58/x
  3. Step 3: Cross multiply
    13,626.38x = 20,428.53 × 4,261.58
  4. Step 4: Simplify right side
    13,626.38x = 87,057,712.73
  5. Step 5: Solve for x
    x = 87,057,712.73/13,626.38
  6. Step 6: Final answer
    x = 6,388.91

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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.