Home / 13,704.39-20,557.40-4,344.23

Finding the Fourth Proportional to 13,704.39, 20,557.40 and 4,344.23

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Solution

The fourth proportional to 13,704.39, 20,557.40 and 4,344.23 is: 6,516.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,704.39 : 20,557.40 = 4,344.23 : x
  2. Step 2: Convert to fraction form
    13,704.39/20,557.40 = 4,344.23/x
  3. Step 3: Cross multiply
    13,704.39x = 20,557.40 × 4,344.23
  4. Step 4: Simplify right side
    13,704.39x = 89,306,103.47
  5. Step 5: Solve for x
    x = 89,306,103.47/13,704.39
  6. Step 6: Final answer
    x = 6,516.61

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Double scale
Find fourth proportional to 13,705.39, 20,558.90 and 4,345.23
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.