Home / 11,490.14-17,220.84-4,908.62

Finding the Fourth Proportional to 11,490.14, 17,220.84 and 4,908.62

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Solution

The fourth proportional to 11,490.14, 17,220.84 and 4,908.62 is: 7,356.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,490.14 : 17,220.84 = 4,908.62 : x
  2. Step 2: Convert to fraction form
    11,490.14/17,220.84 = 4,908.62/x
  3. Step 3: Cross multiply
    11,490.14x = 17,220.84 × 4,908.62
  4. Step 4: Simplify right side
    11,490.14x = 84,530,559.64
  5. Step 5: Solve for x
    x = 84,530,559.64/11,490.14
  6. Step 6: Final answer
    x = 7,356.79

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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.