Home / 17,150.40-25,725.60-7,287.20

Finding the Fourth Proportional to 17,150.40, 25,725.60 and 7,287.20

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Solution

The fourth proportional to 17,150.40, 25,725.60 and 7,287.20 is: 10,930.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,150.40 : 25,725.60 = 7,287.20 : x
  2. Step 2: Convert to fraction form
    17,150.40/25,725.60 = 7,287.20/x
  3. Step 3: Cross multiply
    17,150.40x = 25,725.60 × 7,287.20
  4. Step 4: Simplify right side
    17,150.40x = 187,467,592.32
  5. Step 5: Solve for x
    x = 187,467,592.32/17,150.40
  6. Step 6: Final answer
    x = 10,930.80

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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.