Home / 13,458.61-20,185.53-4,096.36

Finding the Fourth Proportional to 13,458.61, 20,185.53 and 4,096.36

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Solution

The fourth proportional to 13,458.61, 20,185.53 and 4,096.36 is: 6,143.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,458.61 : 20,185.53 = 4,096.36 : x
  2. Step 2: Convert to fraction form
    13,458.61/20,185.53 = 4,096.36/x
  3. Step 3: Cross multiply
    13,458.61x = 20,185.53 × 4,096.36
  4. Step 4: Simplify right side
    13,458.61x = 82,687,197.67
  5. Step 5: Solve for x
    x = 82,687,197.67/13,458.61
  6. Step 6: Final answer
    x = 6,143.81

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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.