Home / 11,591.56-15,998.88-7,117.66

Finding the Fourth Proportional to 11,591.56, 15,998.88 and 7,117.66

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Solution

The fourth proportional to 11,591.56, 15,998.88 and 7,117.66 is: 9,823.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,591.56 : 15,998.88 = 7,117.66 : x
  2. Step 2: Convert to fraction form
    11,591.56/15,998.88 = 7,117.66/x
  3. Step 3: Cross multiply
    11,591.56x = 15,998.88 × 7,117.66
  4. Step 4: Simplify right side
    11,591.56x = 113,874,588.22
  5. Step 5: Solve for x
    x = 113,874,588.22/11,591.56
  6. Step 6: Final answer
    x = 9,823.92

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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.