Home / 17,565.66-26,348.49-12,890.34

Finding the Fourth Proportional to 17,565.66, 26,348.49 and 12,890.34

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Solution

The fourth proportional to 17,565.66, 26,348.49 and 12,890.34 is: 19,335.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,565.66 : 26,348.49 = 12,890.34 : x
  2. Step 2: Convert to fraction form
    17,565.66/26,348.49 = 12,890.34/x
  3. Step 3: Cross multiply
    17,565.66x = 26,348.49 × 12,890.34
  4. Step 4: Simplify right side
    17,565.66x = 339,640,994.59
  5. Step 5: Solve for x
    x = 339,640,994.59/17,565.66
  6. Step 6: Final answer
    x = 19,335.51

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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.