Home / 13,555.80-20,333.94-3,696.12

Finding the Fourth Proportional to 13,555.80, 20,333.94 and 3,696.12

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Solution

The fourth proportional to 13,555.80, 20,333.94 and 3,696.12 is: 5,544.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,555.80 : 20,333.94 = 3,696.12 : x
  2. Step 2: Convert to fraction form
    13,555.80/20,333.94 = 3,696.12/x
  3. Step 3: Cross multiply
    13,555.80x = 20,333.94 × 3,696.12
  4. Step 4: Simplify right side
    13,555.80x = 75,156,682.31
  5. Step 5: Solve for x
    x = 75,156,682.31/13,555.80
  6. Step 6: Final answer
    x = 5,544.25

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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.