Home / 7,021.53-10,516.77-5,135.85

Finding the Fourth Proportional to 7,021.53, 10,516.77 and 5,135.85

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Solution

The fourth proportional to 7,021.53, 10,516.77 and 5,135.85 is: 7,692.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,021.53 : 10,516.77 = 5,135.85 : x
  2. Step 2: Convert to fraction form
    7,021.53/10,516.77 = 5,135.85/x
  3. Step 3: Cross multiply
    7,021.53x = 10,516.77 × 5,135.85
  4. Step 4: Simplify right side
    7,021.53x = 54,012,553.20
  5. Step 5: Solve for x
    x = 54,012,553.20/7,021.53
  6. Step 6: Final answer
    x = 7,692.42

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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.