Home / 13,447.92-20,169.54-3,587.28

Finding the Fourth Proportional to 13,447.92, 20,169.54 and 3,587.28

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Solution

The fourth proportional to 13,447.92, 20,169.54 and 3,587.28 is: 5,380.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,447.92 : 20,169.54 = 3,587.28 : x
  2. Step 2: Convert to fraction form
    13,447.92/20,169.54 = 3,587.28/x
  3. Step 3: Cross multiply
    13,447.92x = 20,169.54 × 3,587.28
  4. Step 4: Simplify right side
    13,447.92x = 72,353,787.45
  5. Step 5: Solve for x
    x = 72,353,787.45/13,447.92
  6. Step 6: Final answer
    x = 5,380.30

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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.