Home / 15,019.56-20,726.62-8,305.01

Finding the Fourth Proportional to 15,019.56, 20,726.62 and 8,305.01

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Solution

The fourth proportional to 15,019.56, 20,726.62 and 8,305.01 is: 11,460.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,019.56 : 20,726.62 = 8,305.01 : x
  2. Step 2: Convert to fraction form
    15,019.56/20,726.62 = 8,305.01/x
  3. Step 3: Cross multiply
    15,019.56x = 20,726.62 × 8,305.01
  4. Step 4: Simplify right side
    15,019.56x = 172,134,786.37
  5. Step 5: Solve for x
    x = 172,134,786.37/15,019.56
  6. Step 6: Final answer
    x = 11,460.71

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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.