Home / 18,709.29-28,063.13-4,669.38

Finding the Fourth Proportional to 18,709.29, 28,063.13 and 4,669.38

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Solution

The fourth proportional to 18,709.29, 28,063.13 and 4,669.38 is: 7,003.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,709.29 : 28,063.13 = 4,669.38 : x
  2. Step 2: Convert to fraction form
    18,709.29/28,063.13 = 4,669.38/x
  3. Step 3: Cross multiply
    18,709.29x = 28,063.13 × 4,669.38
  4. Step 4: Simplify right side
    18,709.29x = 131,037,394.61
  5. Step 5: Solve for x
    x = 131,037,394.61/18,709.29
  6. Step 6: Final answer
    x = 7,003.87

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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.