Home / 11,721.56-17,582.35-3,513.56

Finding the Fourth Proportional to 11,721.56, 17,582.35 and 3,513.56

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Solution

The fourth proportional to 11,721.56, 17,582.35 and 3,513.56 is: 5,270.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,721.56 : 17,582.35 = 3,513.56 : x
  2. Step 2: Convert to fraction form
    11,721.56/17,582.35 = 3,513.56/x
  3. Step 3: Cross multiply
    11,721.56x = 17,582.35 × 3,513.56
  4. Step 4: Simplify right side
    11,721.56x = 61,776,676.84
  5. Step 5: Solve for x
    x = 61,776,676.84/11,721.56
  6. Step 6: Final answer
    x = 5,270.34

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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.