Home / 10,849.78-16,270.80-4,274.20

Finding the Fourth Proportional to 10,849.78, 16,270.80 and 4,274.20

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Solution

The fourth proportional to 10,849.78, 16,270.80 and 4,274.20 is: 6,409.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,849.78 : 16,270.80 = 4,274.20 : x
  2. Step 2: Convert to fraction form
    10,849.78/16,270.80 = 4,274.20/x
  3. Step 3: Cross multiply
    10,849.78x = 16,270.80 × 4,274.20
  4. Step 4: Simplify right side
    10,849.78x = 69,544,653.36
  5. Step 5: Solve for x
    x = 69,544,653.36/10,849.78
  6. Step 6: Final answer
    x = 6,409.78

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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.