Home / 11,390.36-17,087.72-3,601.40

Finding the Fourth Proportional to 11,390.36, 17,087.72 and 3,601.40

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Solution

The fourth proportional to 11,390.36, 17,087.72 and 3,601.40 is: 5,402.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,390.36 : 17,087.72 = 3,601.40 : x
  2. Step 2: Convert to fraction form
    11,390.36/17,087.72 = 3,601.40/x
  3. Step 3: Cross multiply
    11,390.36x = 17,087.72 × 3,601.40
  4. Step 4: Simplify right side
    11,390.36x = 61,539,714.81
  5. Step 5: Solve for x
    x = 61,539,714.81/11,390.36
  6. Step 6: Final answer
    x = 5,402.79

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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.