Home / 13,919.54-20,880.27-5,599.59

Finding the Fourth Proportional to 13,919.54, 20,880.27 and 5,599.59

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Solution

The fourth proportional to 13,919.54, 20,880.27 and 5,599.59 is: 8,399.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,919.54 : 20,880.27 = 5,599.59 : x
  2. Step 2: Convert to fraction form
    13,919.54/20,880.27 = 5,599.59/x
  3. Step 3: Cross multiply
    13,919.54x = 20,880.27 × 5,599.59
  4. Step 4: Simplify right side
    13,919.54x = 116,920,951.09
  5. Step 5: Solve for x
    x = 116,920,951.09/13,919.54
  6. Step 6: Final answer
    x = 8,399.77

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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.