Home / 18,645.75-27,969.50-6,165.47

Finding the Fourth Proportional to 18,645.75, 27,969.50 and 6,165.47

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Solution

The fourth proportional to 18,645.75, 27,969.50 and 6,165.47 is: 9,248.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,645.75 : 27,969.50 = 6,165.47 : x
  2. Step 2: Convert to fraction form
    18,645.75/27,969.50 = 6,165.47/x
  3. Step 3: Cross multiply
    18,645.75x = 27,969.50 × 6,165.47
  4. Step 4: Simplify right side
    18,645.75x = 172,444,942.49
  5. Step 5: Solve for x
    x = 172,444,942.49/18,645.75
  6. Step 6: Final answer
    x = 9,248.49

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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.