Home / 11,309.39-16,964.91-3,411.28

Finding the Fourth Proportional to 11,309.39, 16,964.91 and 3,411.28

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Solution

The fourth proportional to 11,309.39, 16,964.91 and 3,411.28 is: 5,117.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,309.39 : 16,964.91 = 3,411.28 : x
  2. Step 2: Convert to fraction form
    11,309.39/16,964.91 = 3,411.28/x
  3. Step 3: Cross multiply
    11,309.39x = 16,964.91 × 3,411.28
  4. Step 4: Simplify right side
    11,309.39x = 57,872,079.39
  5. Step 5: Solve for x
    x = 57,872,079.39/11,309.39
  6. Step 6: Final answer
    x = 5,117.17

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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.