Home / 7,477.82-11,212.05-3,317.66

Finding the Fourth Proportional to 7,477.82, 11,212.05 and 3,317.66

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Solution

The fourth proportional to 7,477.82, 11,212.05 and 3,317.66 is: 4,974.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,477.82 : 11,212.05 = 3,317.66 : x
  2. Step 2: Convert to fraction form
    7,477.82/11,212.05 = 3,317.66/x
  3. Step 3: Cross multiply
    7,477.82x = 11,212.05 × 3,317.66
  4. Step 4: Simplify right side
    7,477.82x = 37,197,769.80
  5. Step 5: Solve for x
    x = 37,197,769.80/7,477.82
  6. Step 6: Final answer
    x = 4,974.41

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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.