Home / 7,012.85-10,519.20-2,082.53

Finding the Fourth Proportional to 7,012.85, 10,519.20 and 2,082.53

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Solution

The fourth proportional to 7,012.85, 10,519.20 and 2,082.53 is: 3,123.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,012.85 : 10,519.20 = 2,082.53 : x
  2. Step 2: Convert to fraction form
    7,012.85/10,519.20 = 2,082.53/x
  3. Step 3: Cross multiply
    7,012.85x = 10,519.20 × 2,082.53
  4. Step 4: Simplify right side
    7,012.85x = 21,906,549.58
  5. Step 5: Solve for x
    x = 21,906,549.58/7,012.85
  6. Step 6: Final answer
    x = 3,123.77

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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.