Home / 6,631.72-9,947.12-4,786.18

Finding the Fourth Proportional to 6,631.72, 9,947.12 and 4,786.18

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Solution

The fourth proportional to 6,631.72, 9,947.12 and 4,786.18 is: 7,178.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,631.72 : 9,947.12 = 4,786.18 : x
  2. Step 2: Convert to fraction form
    6,631.72/9,947.12 = 4,786.18/x
  3. Step 3: Cross multiply
    6,631.72x = 9,947.12 × 4,786.18
  4. Step 4: Simplify right side
    6,631.72x = 47,608,706.80
  5. Step 5: Solve for x
    x = 47,608,706.80/6,631.72
  6. Step 6: Final answer
    x = 7,178.94

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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.