Home / 13,385.88-20,080.66-4,621.48

Finding the Fourth Proportional to 13,385.88, 20,080.66 and 4,621.48

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Solution

The fourth proportional to 13,385.88, 20,080.66 and 4,621.48 is: 6,932.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,385.88 : 20,080.66 = 4,621.48 : x
  2. Step 2: Convert to fraction form
    13,385.88/20,080.66 = 4,621.48/x
  3. Step 3: Cross multiply
    13,385.88x = 20,080.66 × 4,621.48
  4. Step 4: Simplify right side
    13,385.88x = 92,802,368.58
  5. Step 5: Solve for x
    x = 92,802,368.58/13,385.88
  6. Step 6: Final answer
    x = 6,932.86

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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.