Home / 11,208.78-16,809.23-3,309.19

Finding the Fourth Proportional to 11,208.78, 16,809.23 and 3,309.19

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Solution

The fourth proportional to 11,208.78, 16,809.23 and 3,309.19 is: 4,962.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,208.78 : 16,809.23 = 3,309.19 : x
  2. Step 2: Convert to fraction form
    11,208.78/16,809.23 = 3,309.19/x
  3. Step 3: Cross multiply
    11,208.78x = 16,809.23 × 3,309.19
  4. Step 4: Simplify right side
    11,208.78x = 55,624,935.82
  5. Step 5: Solve for x
    x = 55,624,935.82/11,208.78
  6. Step 6: Final answer
    x = 4,962.62

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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.