Home / 11,469.13-15,824.37-7,220.68

Finding the Fourth Proportional to 11,469.13, 15,824.37 and 7,220.68

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Solution

The fourth proportional to 11,469.13, 15,824.37 and 7,220.68 is: 9,962.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,469.13 : 15,824.37 = 7,220.68 : x
  2. Step 2: Convert to fraction form
    11,469.13/15,824.37 = 7,220.68/x
  3. Step 3: Cross multiply
    11,469.13x = 15,824.37 × 7,220.68
  4. Step 4: Simplify right side
    11,469.13x = 114,262,711.97
  5. Step 5: Solve for x
    x = 114,262,711.97/11,469.13
  6. Step 6: Final answer
    x = 9,962.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.