Home / 7,975.36-11,949.37-5,631.17

Finding the Fourth Proportional to 7,975.36, 11,949.37 and 5,631.17

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Solution

The fourth proportional to 7,975.36, 11,949.37 and 5,631.17 is: 8,437.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,975.36 : 11,949.37 = 5,631.17 : x
  2. Step 2: Convert to fraction form
    7,975.36/11,949.37 = 5,631.17/x
  3. Step 3: Cross multiply
    7,975.36x = 11,949.37 × 5,631.17
  4. Step 4: Simplify right side
    7,975.36x = 67,288,958.93
  5. Step 5: Solve for x
    x = 67,288,958.93/7,975.36
  6. Step 6: Final answer
    x = 8,437.10

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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.