Home / 11,746.58-17,619.87-5,172.80

Finding the Fourth Proportional to 11,746.58, 17,619.87 and 5,172.80

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Solution

The fourth proportional to 11,746.58, 17,619.87 and 5,172.80 is: 7,759.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,746.58 : 17,619.87 = 5,172.80 : x
  2. Step 2: Convert to fraction form
    11,746.58/17,619.87 = 5,172.80/x
  3. Step 3: Cross multiply
    11,746.58x = 17,619.87 × 5,172.80
  4. Step 4: Simplify right side
    11,746.58x = 91,144,063.54
  5. Step 5: Solve for x
    x = 91,144,063.54/11,746.58
  6. Step 6: Final answer
    x = 7,759.20

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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.