Home / 19,863.90-27,417.69-11,370.78

Finding the Fourth Proportional to 19,863.90, 27,417.69 and 11,370.78

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Solution

The fourth proportional to 19,863.90, 27,417.69 and 11,370.78 is: 15,694.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,863.90 : 27,417.69 = 11,370.78 : x
  2. Step 2: Convert to fraction form
    19,863.90/27,417.69 = 11,370.78/x
  3. Step 3: Cross multiply
    19,863.90x = 27,417.69 × 11,370.78
  4. Step 4: Simplify right side
    19,863.90x = 311,760,521.10
  5. Step 5: Solve for x
    x = 311,760,521.10/19,863.90
  6. Step 6: Final answer
    x = 15,694.83

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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.