Home / 9,169.27-12,653.64-5,191.15

Finding the Fourth Proportional to 9,169.27, 12,653.64 and 5,191.15

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Solution

The fourth proportional to 9,169.27, 12,653.64 and 5,191.15 is: 7,163.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,169.27 : 12,653.64 = 5,191.15 : x
  2. Step 2: Convert to fraction form
    9,169.27/12,653.64 = 5,191.15/x
  3. Step 3: Cross multiply
    9,169.27x = 12,653.64 × 5,191.15
  4. Step 4: Simplify right side
    9,169.27x = 65,686,943.29
  5. Step 5: Solve for x
    x = 65,686,943.29/9,169.27
  6. Step 6: Final answer
    x = 7,163.81

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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.