Home / 11,133.28-16,699.84-2,813.16

Finding the Fourth Proportional to 11,133.28, 16,699.84 and 2,813.16

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Solution

The fourth proportional to 11,133.28, 16,699.84 and 2,813.16 is: 4,219.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,133.28 : 16,699.84 = 2,813.16 : x
  2. Step 2: Convert to fraction form
    11,133.28/16,699.84 = 2,813.16/x
  3. Step 3: Cross multiply
    11,133.28x = 16,699.84 × 2,813.16
  4. Step 4: Simplify right side
    11,133.28x = 46,979,321.89
  5. Step 5: Solve for x
    x = 46,979,321.89/11,133.28
  6. Step 6: Final answer
    x = 4,219.72

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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.