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Finding the Fourth Proportional to 7,012.10, 10,520.11 and 2,081.63

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Solution

The fourth proportional to 7,012.10, 10,520.11 and 2,081.63 is: 3,123.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,012.10 : 10,520.11 = 2,081.63 : x
  2. Step 2: Convert to fraction form
    7,012.10/10,520.11 = 2,081.63/x
  3. Step 3: Cross multiply
    7,012.10x = 10,520.11 × 2,081.63
  4. Step 4: Simplify right side
    7,012.10x = 21,898,976.58
  5. Step 5: Solve for x
    x = 21,898,976.58/7,012.10
  6. Step 6: Final answer
    x = 3,123.03

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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.