Home / 7,817.82-11,730.78-4,488.72

Finding the Fourth Proportional to 7,817.82, 11,730.78 and 4,488.72

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Solution

The fourth proportional to 7,817.82, 11,730.78 and 4,488.72 is: 6,735.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,817.82 : 11,730.78 = 4,488.72 : x
  2. Step 2: Convert to fraction form
    7,817.82/11,730.78 = 4,488.72/x
  3. Step 3: Cross multiply
    7,817.82x = 11,730.78 × 4,488.72
  4. Step 4: Simplify right side
    7,817.82x = 52,656,186.80
  5. Step 5: Solve for x
    x = 52,656,186.80/7,817.82
  6. Step 6: Final answer
    x = 6,735.41

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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.