Home / 16,816.36-25,224.56-5,128.96

Finding the Fourth Proportional to 16,816.36, 25,224.56 and 5,128.96

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Solution

The fourth proportional to 16,816.36, 25,224.56 and 5,128.96 is: 7,693.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,816.36 : 25,224.56 = 5,128.96 : x
  2. Step 2: Convert to fraction form
    16,816.36/25,224.56 = 5,128.96/x
  3. Step 3: Cross multiply
    16,816.36x = 25,224.56 × 5,128.96
  4. Step 4: Simplify right side
    16,816.36x = 129,375,759.26
  5. Step 5: Solve for x
    x = 129,375,759.26/16,816.36
  6. Step 6: Final answer
    x = 7,693.45

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1.5x scale

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.