Home / 11,568.28-15,991.13-10,321.69

Finding the Fourth Proportional to 11,568.28, 15,991.13 and 10,321.69

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Solution

The fourth proportional to 11,568.28, 15,991.13 and 10,321.69 is: 14,267.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,568.28 : 15,991.13 = 10,321.69 : x
  2. Step 2: Convert to fraction form
    11,568.28/15,991.13 = 10,321.69/x
  3. Step 3: Cross multiply
    11,568.28x = 15,991.13 × 10,321.69
  4. Step 4: Simplify right side
    11,568.28x = 165,055,486.61
  5. Step 5: Solve for x
    x = 165,055,486.61/11,568.28
  6. Step 6: Final answer
    x = 14,267.94

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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.