Home / 11,743.51-17,615.22-2,978.40

Finding the Fourth Proportional to 11,743.51, 17,615.22 and 2,978.40

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Solution

The fourth proportional to 11,743.51, 17,615.22 and 2,978.40 is: 4,467.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,743.51 : 17,615.22 = 2,978.40 : x
  2. Step 2: Convert to fraction form
    11,743.51/17,615.22 = 2,978.40/x
  3. Step 3: Cross multiply
    11,743.51x = 17,615.22 × 2,978.40
  4. Step 4: Simplify right side
    11,743.51x = 52,465,171.25
  5. Step 5: Solve for x
    x = 52,465,171.25/11,743.51
  6. Step 6: Final answer
    x = 4,467.59

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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.