Home / 11,516.61-17,274.18-4,120.71

Finding the Fourth Proportional to 11,516.61, 17,274.18 and 4,120.71

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Solution

The fourth proportional to 11,516.61, 17,274.18 and 4,120.71 is: 6,180.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,516.61 : 17,274.18 = 4,120.71 : x
  2. Step 2: Convert to fraction form
    11,516.61/17,274.18 = 4,120.71/x
  3. Step 3: Cross multiply
    11,516.61x = 17,274.18 × 4,120.71
  4. Step 4: Simplify right side
    11,516.61x = 71,181,886.27
  5. Step 5: Solve for x
    x = 71,181,886.27/11,516.61
  6. Step 6: Final answer
    x = 6,180.80

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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.