Home / 19,172.22-26,457.62-11,212.80

Finding the Fourth Proportional to 19,172.22, 26,457.62 and 11,212.80

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Solution

The fourth proportional to 19,172.22, 26,457.62 and 11,212.80 is: 15,473.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,172.22 : 26,457.62 = 11,212.80 : x
  2. Step 2: Convert to fraction form
    19,172.22/26,457.62 = 11,212.80/x
  3. Step 3: Cross multiply
    19,172.22x = 26,457.62 × 11,212.80
  4. Step 4: Simplify right side
    19,172.22x = 296,664,001.54
  5. Step 5: Solve for x
    x = 296,664,001.54/19,172.22
  6. Step 6: Final answer
    x = 15,473.64

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1.5x scale

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.