Home / 10,971.28-16,448.64-3,571.32

Finding the Fourth Proportional to 10,971.28, 16,448.64 and 3,571.32

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Solution

The fourth proportional to 10,971.28, 16,448.64 and 3,571.32 is: 5,354.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,971.28 : 16,448.64 = 3,571.32 : x
  2. Step 2: Convert to fraction form
    10,971.28/16,448.64 = 3,571.32/x
  3. Step 3: Cross multiply
    10,971.28x = 16,448.64 × 3,571.32
  4. Step 4: Simplify right side
    10,971.28x = 58,743,357.00
  5. Step 5: Solve for x
    x = 58,743,357.00/10,971.28
  6. Step 6: Final answer
    x = 5,354.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.