Home / 13,447.82-20,172.81-4,088.66

Finding the Fourth Proportional to 13,447.82, 20,172.81 and 4,088.66

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Solution

The fourth proportional to 13,447.82, 20,172.81 and 4,088.66 is: 6,133.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,447.82 : 20,172.81 = 4,088.66 : x
  2. Step 2: Convert to fraction form
    13,447.82/20,172.81 = 4,088.66/x
  3. Step 3: Cross multiply
    13,447.82x = 20,172.81 × 4,088.66
  4. Step 4: Simplify right side
    13,447.82x = 82,479,761.33
  5. Step 5: Solve for x
    x = 82,479,761.33/13,447.82
  6. Step 6: Final answer
    x = 6,133.32

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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.