Home / 9,986.46-13,781.12-5,510.64

Finding the Fourth Proportional to 9,986.46, 13,781.12 and 5,510.64

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Solution

The fourth proportional to 9,986.46, 13,781.12 and 5,510.64 is: 7,604.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,986.46 : 13,781.12 = 5,510.64 : x
  2. Step 2: Convert to fraction form
    9,986.46/13,781.12 = 5,510.64/x
  3. Step 3: Cross multiply
    9,986.46x = 13,781.12 × 5,510.64
  4. Step 4: Simplify right side
    9,986.46x = 75,942,791.12
  5. Step 5: Solve for x
    x = 75,942,791.12/9,986.46
  6. Step 6: Final answer
    x = 7,604.58

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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.