Home / 11,381.36-17,072.04-3,590.78

Finding the Fourth Proportional to 11,381.36, 17,072.04 and 3,590.78

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Solution

The fourth proportional to 11,381.36, 17,072.04 and 3,590.78 is: 5,386.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,381.36 : 17,072.04 = 3,590.78 : x
  2. Step 2: Convert to fraction form
    11,381.36/17,072.04 = 3,590.78/x
  3. Step 3: Cross multiply
    11,381.36x = 17,072.04 × 3,590.78
  4. Step 4: Simplify right side
    11,381.36x = 61,301,939.79
  5. Step 5: Solve for x
    x = 61,301,939.79/11,381.36
  6. Step 6: Final answer
    x = 5,386.17

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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.