Home / 11,408.81-17,109.95-4,388.36

Finding the Fourth Proportional to 11,408.81, 17,109.95 and 4,388.36

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Solution

The fourth proportional to 11,408.81, 17,109.95 and 4,388.36 is: 6,581.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,408.81 : 17,109.95 = 4,388.36 : x
  2. Step 2: Convert to fraction form
    11,408.81/17,109.95 = 4,388.36/x
  3. Step 3: Cross multiply
    11,408.81x = 17,109.95 × 4,388.36
  4. Step 4: Simplify right side
    11,408.81x = 75,084,512.69
  5. Step 5: Solve for x
    x = 75,084,512.69/11,408.81
  6. Step 6: Final answer
    x = 6,581.28

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1.5x scale

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.