Home / 10,082.35-13,912.58-5,605.38

Finding the Fourth Proportional to 10,082.35, 13,912.58 and 5,605.38

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Solution

The fourth proportional to 10,082.35, 13,912.58 and 5,605.38 is: 7,734.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,082.35 : 13,912.58 = 5,605.38 : x
  2. Step 2: Convert to fraction form
    10,082.35/13,912.58 = 5,605.38/x
  3. Step 3: Cross multiply
    10,082.35x = 13,912.58 × 5,605.38
  4. Step 4: Simplify right side
    10,082.35x = 77,985,297.68
  5. Step 5: Solve for x
    x = 77,985,297.68/10,082.35
  6. Step 6: Final answer
    x = 7,734.83

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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.