Home / 19,348.72-26,691.38-12,638.26

Finding the Fourth Proportional to 19,348.72, 26,691.38 and 12,638.26

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Solution

The fourth proportional to 19,348.72, 26,691.38 and 12,638.26 is: 17,434.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,348.72 : 26,691.38 = 12,638.26 : x
  2. Step 2: Convert to fraction form
    19,348.72/26,691.38 = 12,638.26/x
  3. Step 3: Cross multiply
    19,348.72x = 26,691.38 × 12,638.26
  4. Step 4: Simplify right side
    19,348.72x = 337,332,600.20
  5. Step 5: Solve for x
    x = 337,332,600.20/19,348.72
  6. Step 6: Final answer
    x = 17,434.36

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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.