Home / 18,837.72-28,257.66-7,150.68

Finding the Fourth Proportional to 18,837.72, 28,257.66 and 7,150.68

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Solution

The fourth proportional to 18,837.72, 28,257.66 and 7,150.68 is: 10,726.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,837.72 : 28,257.66 = 7,150.68 : x
  2. Step 2: Convert to fraction form
    18,837.72/28,257.66 = 7,150.68/x
  3. Step 3: Cross multiply
    18,837.72x = 28,257.66 × 7,150.68
  4. Step 4: Simplify right side
    18,837.72x = 202,061,484.21
  5. Step 5: Solve for x
    x = 202,061,484.21/18,837.72
  6. Step 6: Final answer
    x = 10,726.43

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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.