Home / 13,611.83-20,419.56-4,846.82

Finding the Fourth Proportional to 13,611.83, 20,419.56 and 4,846.82

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Solution

The fourth proportional to 13,611.83, 20,419.56 and 4,846.82 is: 7,270.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,611.83 : 20,419.56 = 4,846.82 : x
  2. Step 2: Convert to fraction form
    13,611.83/20,419.56 = 4,846.82/x
  3. Step 3: Cross multiply
    13,611.83x = 20,419.56 × 4,846.82
  4. Step 4: Simplify right side
    13,611.83x = 98,969,829.70
  5. Step 5: Solve for x
    x = 98,969,829.70/13,611.83
  6. Step 6: Final answer
    x = 7,270.87

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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.