Home / 11,712.35-17,568.54-2,947.20

Finding the Fourth Proportional to 11,712.35, 17,568.54 and 2,947.20

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Solution

The fourth proportional to 11,712.35, 17,568.54 and 2,947.20 is: 4,420.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,712.35 : 17,568.54 = 2,947.20 : x
  2. Step 2: Convert to fraction form
    11,712.35/17,568.54 = 2,947.20/x
  3. Step 3: Cross multiply
    11,712.35x = 17,568.54 × 2,947.20
  4. Step 4: Simplify right side
    11,712.35x = 51,778,001.09
  5. Step 5: Solve for x
    x = 51,778,001.09/11,712.35
  6. Step 6: Final answer
    x = 4,420.81

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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.