Home / 10,286.94-14,196-5,571.21

Finding the Fourth Proportional to 10,286.94, 14,196 and 5,571.21

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Solution

The fourth proportional to 10,286.94, 14,196 and 5,571.21 is: 7,688.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,286.94 : 14,196 = 5,571.21 : x
  2. Step 2: Convert to fraction form
    10,286.94/14,196 = 5,571.21/x
  3. Step 3: Cross multiply
    10,286.94x = 14,196 × 5,571.21
  4. Step 4: Simplify right side
    10,286.94x = 79,088,897.16
  5. Step 5: Solve for x
    x = 79,088,897.16/10,286.94
  6. Step 6: Final answer
    x = 7,688.28

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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.