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Finding the Fourth Proportional to 7,761.12, 10,709.97 and 4,403.87

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Solution

The fourth proportional to 7,761.12, 10,709.97 and 4,403.87 is: 6,077.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,761.12 : 10,709.97 = 4,403.87 : x
  2. Step 2: Convert to fraction form
    7,761.12/10,709.97 = 4,403.87/x
  3. Step 3: Cross multiply
    7,761.12x = 10,709.97 × 4,403.87
  4. Step 4: Simplify right side
    7,761.12x = 47,165,262.03
  5. Step 5: Solve for x
    x = 47,165,262.03/7,761.12
  6. Step 6: Final answer
    x = 6,077.12

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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.