Home / 10,890.82-15,028.50-6,174.28

Finding the Fourth Proportional to 10,890.82, 15,028.50 and 6,174.28

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Solution

The fourth proportional to 10,890.82, 15,028.50 and 6,174.28 is: 8,520.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,890.82 : 15,028.50 = 6,174.28 : x
  2. Step 2: Convert to fraction form
    10,890.82/15,028.50 = 6,174.28/x
  3. Step 3: Cross multiply
    10,890.82x = 15,028.50 × 6,174.28
  4. Step 4: Simplify right side
    10,890.82x = 92,790,166.98
  5. Step 5: Solve for x
    x = 92,790,166.98/10,890.82
  6. Step 6: Final answer
    x = 8,520.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.