Home / 21,863.08-32,786.57-7,819.30

Finding the Fourth Proportional to 21,863.08, 32,786.57 and 7,819.30

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Solution

The fourth proportional to 21,863.08, 32,786.57 and 7,819.30 is: 11,726.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,863.08 : 32,786.57 = 7,819.30 : x
  2. Step 2: Convert to fraction form
    21,863.08/32,786.57 = 7,819.30/x
  3. Step 3: Cross multiply
    21,863.08x = 32,786.57 × 7,819.30
  4. Step 4: Simplify right side
    21,863.08x = 256,368,087.33
  5. Step 5: Solve for x
    x = 256,368,087.33/21,863.08
  6. Step 6: Final answer
    x = 11,726.07

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1.5x scale

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.