Home / 9,142.16-13,694.04-7,761.68

Finding the Fourth Proportional to 9,142.16, 13,694.04 and 7,761.68

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Solution

The fourth proportional to 9,142.16, 13,694.04 and 7,761.68 is: 11,626.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,142.16 : 13,694.04 = 7,761.68 : x
  2. Step 2: Convert to fraction form
    9,142.16/13,694.04 = 7,761.68/x
  3. Step 3: Cross multiply
    9,142.16x = 13,694.04 × 7,761.68
  4. Step 4: Simplify right side
    9,142.16x = 106,288,756.39
  5. Step 5: Solve for x
    x = 106,288,756.39/9,142.16
  6. Step 6: Final answer
    x = 11,626.22

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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.