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Finding the Fourth Proportional to 7,012.68, 10,520.99 and 2,082.51

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Solution

The fourth proportional to 7,012.68, 10,520.99 and 2,082.51 is: 3,124.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,012.68 : 10,520.99 = 2,082.51 : x
  2. Step 2: Convert to fraction form
    7,012.68/10,520.99 = 2,082.51/x
  3. Step 3: Cross multiply
    7,012.68x = 10,520.99 × 2,082.51
  4. Step 4: Simplify right side
    7,012.68x = 21,910,064.28
  5. Step 5: Solve for x
    x = 21,910,064.28/7,012.68
  6. Step 6: Final answer
    x = 3,124.35

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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.