Home / 13,867.84-20,801.52-3,479.44

Finding the Fourth Proportional to 13,867.84, 20,801.52 and 3,479.44

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Solution

The fourth proportional to 13,867.84, 20,801.52 and 3,479.44 is: 5,219.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,867.84 : 20,801.52 = 3,479.44 : x
  2. Step 2: Convert to fraction form
    13,867.84/20,801.52 = 3,479.44/x
  3. Step 3: Cross multiply
    13,867.84x = 20,801.52 × 3,479.44
  4. Step 4: Simplify right side
    13,867.84x = 72,377,640.75
  5. Step 5: Solve for x
    x = 72,377,640.75/13,867.84
  6. Step 6: Final answer
    x = 5,219.10

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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.