Home / 19,348.71-26,691.39-12,638.27

Finding the Fourth Proportional to 19,348.71, 26,691.39 and 12,638.27

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Solution

The fourth proportional to 19,348.71, 26,691.39 and 12,638.27 is: 17,434.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,348.71 : 26,691.39 = 12,638.27 : x
  2. Step 2: Convert to fraction form
    19,348.71/26,691.39 = 12,638.27/x
  3. Step 3: Cross multiply
    19,348.71x = 26,691.39 × 12,638.27
  4. Step 4: Simplify right side
    19,348.71x = 337,332,993.50
  5. Step 5: Solve for x
    x = 337,332,993.50/19,348.71
  6. Step 6: Final answer
    x = 17,434.39

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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.