Home / 11,606.40-17,408.16-3,815.28

Finding the Fourth Proportional to 11,606.40, 17,408.16 and 3,815.28

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Solution

The fourth proportional to 11,606.40, 17,408.16 and 3,815.28 is: 5,722.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,606.40 : 17,408.16 = 3,815.28 : x
  2. Step 2: Convert to fraction form
    11,606.40/17,408.16 = 3,815.28/x
  3. Step 3: Cross multiply
    11,606.40x = 17,408.16 × 3,815.28
  4. Step 4: Simplify right side
    11,606.40x = 66,417,004.68
  5. Step 5: Solve for x
    x = 66,417,004.68/11,606.40
  6. Step 6: Final answer
    x = 5,722.45

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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.