Home / 15,020.44-20,726.40-8,305.14

Finding the Fourth Proportional to 15,020.44, 20,726.40 and 8,305.14

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Solution

The fourth proportional to 15,020.44, 20,726.40 and 8,305.14 is: 11,460.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,020.44 : 20,726.40 = 8,305.14 : x
  2. Step 2: Convert to fraction form
    15,020.44/20,726.40 = 8,305.14/x
  3. Step 3: Cross multiply
    15,020.44x = 20,726.40 × 8,305.14
  4. Step 4: Simplify right side
    15,020.44x = 172,135,653.70
  5. Step 5: Solve for x
    x = 172,135,653.70/15,020.44
  6. Step 6: Final answer
    x = 11,460.09

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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.