Home / 11,208.49-16,809.08-3,812.78

Finding the Fourth Proportional to 11,208.49, 16,809.08 and 3,812.78

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Solution

The fourth proportional to 11,208.49, 16,809.08 and 3,812.78 is: 5,717.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,208.49 : 16,809.08 = 3,812.78 : x
  2. Step 2: Convert to fraction form
    11,208.49/16,809.08 = 3,812.78/x
  3. Step 3: Cross multiply
    11,208.49x = 16,809.08 × 3,812.78
  4. Step 4: Simplify right side
    11,208.49x = 64,089,324.04
  5. Step 5: Solve for x
    x = 64,089,324.04/11,208.49
  6. Step 6: Final answer
    x = 5,717.93

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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.