Home / 13,599.54-20,380.16-10,813.85

Finding the Fourth Proportional to 13,599.54, 20,380.16 and 10,813.85

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Solution

The fourth proportional to 13,599.54, 20,380.16 and 10,813.85 is: 16,205.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,599.54 : 20,380.16 = 10,813.85 : x
  2. Step 2: Convert to fraction form
    13,599.54/20,380.16 = 10,813.85/x
  3. Step 3: Cross multiply
    13,599.54x = 20,380.16 × 10,813.85
  4. Step 4: Simplify right side
    13,599.54x = 220,387,837.25
  5. Step 5: Solve for x
    x = 220,387,837.25/13,599.54
  6. Step 6: Final answer
    x = 16,205.54

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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.