Home / 11,568.06-15,971.04-8,910.36

Finding the Fourth Proportional to 11,568.06, 15,971.04 and 8,910.36

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Solution

The fourth proportional to 11,568.06, 15,971.04 and 8,910.36 is: 12,301.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,568.06 : 15,971.04 = 8,910.36 : x
  2. Step 2: Convert to fraction form
    11,568.06/15,971.04 = 8,910.36/x
  3. Step 3: Cross multiply
    11,568.06x = 15,971.04 × 8,910.36
  4. Step 4: Simplify right side
    11,568.06x = 142,307,715.97
  5. Step 5: Solve for x
    x = 142,307,715.97/11,568.06
  6. Step 6: Final answer
    x = 12,301.78

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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.