Home / 11,721.36-17,582.04-4,791

Finding the Fourth Proportional to 11,721.36, 17,582.04 and 4,791

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Solution

The fourth proportional to 11,721.36, 17,582.04 and 4,791 is: 7,186.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,721.36 : 17,582.04 = 4,791 : x
  2. Step 2: Convert to fraction form
    11,721.36/17,582.04 = 4,791/x
  3. Step 3: Cross multiply
    11,721.36x = 17,582.04 × 4,791
  4. Step 4: Simplify right side
    11,721.36x = 84,235,553.64
  5. Step 5: Solve for x
    x = 84,235,553.64/11,721.36
  6. Step 6: Final answer
    x = 7,186.50

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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.