Home / 10,889.28-16,333.92-2,681.28

Finding the Fourth Proportional to 10,889.28, 16,333.92 and 2,681.28

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Solution

The fourth proportional to 10,889.28, 16,333.92 and 2,681.28 is: 4,021.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,889.28 : 16,333.92 = 2,681.28 : x
  2. Step 2: Convert to fraction form
    10,889.28/16,333.92 = 2,681.28/x
  3. Step 3: Cross multiply
    10,889.28x = 16,333.92 × 2,681.28
  4. Step 4: Simplify right side
    10,889.28x = 43,795,813.02
  5. Step 5: Solve for x
    x = 43,795,813.02/10,889.28
  6. Step 6: Final answer
    x = 4,021.92

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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.