Home / 13,447.77-20,171.66-3,587.09

Finding the Fourth Proportional to 13,447.77, 20,171.66 and 3,587.09

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Solution

The fourth proportional to 13,447.77, 20,171.66 and 3,587.09 is: 5,380.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,447.77 : 20,171.66 = 3,587.09 : x
  2. Step 2: Convert to fraction form
    13,447.77/20,171.66 = 3,587.09/x
  3. Step 3: Cross multiply
    13,447.77x = 20,171.66 × 3,587.09
  4. Step 4: Simplify right side
    13,447.77x = 72,357,441.08
  5. Step 5: Solve for x
    x = 72,357,441.08/13,447.77
  6. Step 6: Final answer
    x = 5,380.63

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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.