Home / 18,969.15-28,462.04-10,193.82

Finding the Fourth Proportional to 18,969.15, 28,462.04 and 10,193.82

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Solution

The fourth proportional to 18,969.15, 28,462.04 and 10,193.82 is: 15,295.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,969.15 : 28,462.04 = 10,193.82 : x
  2. Step 2: Convert to fraction form
    18,969.15/28,462.04 = 10,193.82/x
  3. Step 3: Cross multiply
    18,969.15x = 28,462.04 × 10,193.82
  4. Step 4: Simplify right side
    18,969.15x = 290,136,861.62
  5. Step 5: Solve for x
    x = 290,136,861.62/18,969.15
  6. Step 6: Final answer
    x = 15,295.20

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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.