Home / 18,124.29-27,188.97-5,645.22

Finding the Fourth Proportional to 18,124.29, 27,188.97 and 5,645.22

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Solution

The fourth proportional to 18,124.29, 27,188.97 and 5,645.22 is: 8,468.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,124.29 : 27,188.97 = 5,645.22 : x
  2. Step 2: Convert to fraction form
    18,124.29/27,188.97 = 5,645.22/x
  3. Step 3: Cross multiply
    18,124.29x = 27,188.97 × 5,645.22
  4. Step 4: Simplify right side
    18,124.29x = 153,487,717.22
  5. Step 5: Solve for x
    x = 153,487,717.22/18,124.29
  6. Step 6: Final answer
    x = 8,468.62

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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.