Home / 10,996.21-16,490.19-4,420.16

Finding the Fourth Proportional to 10,996.21, 16,490.19 and 4,420.16

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Solution

The fourth proportional to 10,996.21, 16,490.19 and 4,420.16 is: 6,628.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,996.21 : 16,490.19 = 4,420.16 : x
  2. Step 2: Convert to fraction form
    10,996.21/16,490.19 = 4,420.16/x
  3. Step 3: Cross multiply
    10,996.21x = 16,490.19 × 4,420.16
  4. Step 4: Simplify right side
    10,996.21x = 72,889,195.78
  5. Step 5: Solve for x
    x = 72,889,195.78/10,996.21
  6. Step 6: Final answer
    x = 6,628.58

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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.