Home / 14,434.38-19,919.39-8,146.71

Finding the Fourth Proportional to 14,434.38, 19,919.39 and 8,146.71

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Solution

The fourth proportional to 14,434.38, 19,919.39 and 8,146.71 is: 11,242.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,434.38 : 19,919.39 = 8,146.71 : x
  2. Step 2: Convert to fraction form
    14,434.38/19,919.39 = 8,146.71/x
  3. Step 3: Cross multiply
    14,434.38x = 19,919.39 × 8,146.71
  4. Step 4: Simplify right side
    14,434.38x = 162,277,452.97
  5. Step 5: Solve for x
    x = 162,277,452.97/14,434.38
  6. Step 6: Final answer
    x = 11,242.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.