Home / 13,447.69-20,172.61-4,088.54

Finding the Fourth Proportional to 13,447.69, 20,172.61 and 4,088.54

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Solution

The fourth proportional to 13,447.69, 20,172.61 and 4,088.54 is: 6,133.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,447.69 : 20,172.61 = 4,088.54 : x
  2. Step 2: Convert to fraction form
    13,447.69/20,172.61 = 4,088.54/x
  3. Step 3: Cross multiply
    13,447.69x = 20,172.61 × 4,088.54
  4. Step 4: Simplify right side
    13,447.69x = 82,476,578.43
  5. Step 5: Solve for x
    x = 82,476,578.43/13,447.69
  6. Step 6: Final answer
    x = 6,133.14

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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.