Home / 13,736.12-20,599.99-3,872.75

Finding the Fourth Proportional to 13,736.12, 20,599.99 and 3,872.75

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Solution

The fourth proportional to 13,736.12, 20,599.99 and 3,872.75 is: 5,807.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,736.12 : 20,599.99 = 3,872.75 : x
  2. Step 2: Convert to fraction form
    13,736.12/20,599.99 = 3,872.75/x
  3. Step 3: Cross multiply
    13,736.12x = 20,599.99 × 3,872.75
  4. Step 4: Simplify right side
    13,736.12x = 79,778,498.59
  5. Step 5: Solve for x
    x = 79,778,498.59/13,736.12
  6. Step 6: Final answer
    x = 5,807.94

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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.