Home / 10,611.43-15,914.54-3,855.91

Finding the Fourth Proportional to 10,611.43, 15,914.54 and 3,855.91

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Solution

The fourth proportional to 10,611.43, 15,914.54 and 3,855.91 is: 5,782.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,611.43 : 15,914.54 = 3,855.91 : x
  2. Step 2: Convert to fraction form
    10,611.43/15,914.54 = 3,855.91/x
  3. Step 3: Cross multiply
    10,611.43x = 15,914.54 × 3,855.91
  4. Step 4: Simplify right side
    10,611.43x = 61,365,033.93
  5. Step 5: Solve for x
    x = 61,365,033.93/10,611.43
  6. Step 6: Final answer
    x = 5,782.92

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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.