Home / 11,715.14-16,173.57-7,747.76

Finding the Fourth Proportional to 11,715.14, 16,173.57 and 7,747.76

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Solution

The fourth proportional to 11,715.14, 16,173.57 and 7,747.76 is: 10,696.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,715.14 : 16,173.57 = 7,747.76 : x
  2. Step 2: Convert to fraction form
    11,715.14/16,173.57 = 7,747.76/x
  3. Step 3: Cross multiply
    11,715.14x = 16,173.57 × 7,747.76
  4. Step 4: Simplify right side
    11,715.14x = 125,308,857.84
  5. Step 5: Solve for x
    x = 125,308,857.84/11,715.14
  6. Step 6: Final answer
    x = 10,696.32

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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.