Home / 19,565.85-27,012.51-12,863.37

Finding the Fourth Proportional to 19,565.85, 27,012.51 and 12,863.37

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Solution

The fourth proportional to 19,565.85, 27,012.51 and 12,863.37 is: 17,759.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,565.85 : 27,012.51 = 12,863.37 : x
  2. Step 2: Convert to fraction form
    19,565.85/27,012.51 = 12,863.37/x
  3. Step 3: Cross multiply
    19,565.85x = 27,012.51 × 12,863.37
  4. Step 4: Simplify right side
    19,565.85x = 347,471,910.76
  5. Step 5: Solve for x
    x = 347,471,910.76/19,565.85
  6. Step 6: Final answer
    x = 17,759.10

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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.