Home / 11,127.30-16,690.78-2,807.26

Finding the Fourth Proportional to 11,127.30, 16,690.78 and 2,807.26

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Solution

The fourth proportional to 11,127.30, 16,690.78 and 2,807.26 is: 4,210.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,127.30 : 16,690.78 = 2,807.26 : x
  2. Step 2: Convert to fraction form
    11,127.30/16,690.78 = 2,807.26/x
  3. Step 3: Cross multiply
    11,127.30x = 16,690.78 × 2,807.26
  4. Step 4: Simplify right side
    11,127.30x = 46,855,359.06
  5. Step 5: Solve for x
    x = 46,855,359.06/11,127.30
  6. Step 6: Final answer
    x = 4,210.85

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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.