Home / 11,591.06-15,991.29-8,573.40

Finding the Fourth Proportional to 11,591.06, 15,991.29 and 8,573.40

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Solution

The fourth proportional to 11,591.06, 15,991.29 and 8,573.40 is: 11,828.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,591.06 : 15,991.29 = 8,573.40 : x
  2. Step 2: Convert to fraction form
    11,591.06/15,991.29 = 8,573.40/x
  3. Step 3: Cross multiply
    11,591.06x = 15,991.29 × 8,573.40
  4. Step 4: Simplify right side
    11,591.06x = 137,099,725.69
  5. Step 5: Solve for x
    x = 137,099,725.69/11,591.06
  6. Step 6: Final answer
    x = 11,828.06

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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.