Home / 6,631.25-9,147.65-4,112.55

Finding the Fourth Proportional to 6,631.25, 9,147.65 and 4,112.55

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Solution

The fourth proportional to 6,631.25, 9,147.65 and 4,112.55 is: 5,673.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,631.25 : 9,147.65 = 4,112.55 : x
  2. Step 2: Convert to fraction form
    6,631.25/9,147.65 = 4,112.55/x
  3. Step 3: Cross multiply
    6,631.25x = 9,147.65 × 4,112.55
  4. Step 4: Simplify right side
    6,631.25x = 37,620,147.44
  5. Step 5: Solve for x
    x = 37,620,147.44/6,631.25
  6. Step 6: Final answer
    x = 5,673.17

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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.