Home / 8,419.27-12,629-5,516.05

Finding the Fourth Proportional to 8,419.27, 12,629 and 5,516.05

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Solution

The fourth proportional to 8,419.27, 12,629 and 5,516.05 is: 8,274.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,419.27 : 12,629 = 5,516.05 : x
  2. Step 2: Convert to fraction form
    8,419.27/12,629 = 5,516.05/x
  3. Step 3: Cross multiply
    8,419.27x = 12,629 × 5,516.05
  4. Step 4: Simplify right side
    8,419.27x = 69,662,195.45
  5. Step 5: Solve for x
    x = 69,662,195.45/8,419.27
  6. Step 6: Final answer
    x = 8,274.14

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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.