Home / 13,611.08-20,418.04-3,750.36

Finding the Fourth Proportional to 13,611.08, 20,418.04 and 3,750.36

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Solution

The fourth proportional to 13,611.08, 20,418.04 and 3,750.36 is: 5,625.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,611.08 : 20,418.04 = 3,750.36 : x
  2. Step 2: Convert to fraction form
    13,611.08/20,418.04 = 3,750.36/x
  3. Step 3: Cross multiply
    13,611.08x = 20,418.04 × 3,750.36
  4. Step 4: Simplify right side
    13,611.08x = 76,575,056.36
  5. Step 5: Solve for x
    x = 76,575,056.36/13,611.08
  6. Step 6: Final answer
    x = 5,625.93

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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.