Home / 11,399.78-17,088.74-3,603.26

Finding the Fourth Proportional to 11,399.78, 17,088.74 and 3,603.26

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Solution

The fourth proportional to 11,399.78, 17,088.74 and 3,603.26 is: 5,401.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,399.78 : 17,088.74 = 3,603.26 : x
  2. Step 2: Convert to fraction form
    11,399.78/17,088.74 = 3,603.26/x
  3. Step 3: Cross multiply
    11,399.78x = 17,088.74 × 3,603.26
  4. Step 4: Simplify right side
    11,399.78x = 61,575,155.28
  5. Step 5: Solve for x
    x = 61,575,155.28/11,399.78
  6. Step 6: Final answer
    x = 5,401.43

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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.