Home / 13,747.42-20,618.54-3,886.62

Finding the Fourth Proportional to 13,747.42, 20,618.54 and 3,886.62

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Solution

The fourth proportional to 13,747.42, 20,618.54 and 3,886.62 is: 5,829.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,747.42 : 20,618.54 = 3,886.62 : x
  2. Step 2: Convert to fraction form
    13,747.42/20,618.54 = 3,886.62/x
  3. Step 3: Cross multiply
    13,747.42x = 20,618.54 × 3,886.62
  4. Step 4: Simplify right side
    13,747.42x = 80,136,429.93
  5. Step 5: Solve for x
    x = 80,136,429.93/13,747.42
  6. Step 6: Final answer
    x = 5,829.20

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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.