Home / 19,212.66-28,816.56-5,173.81

Finding the Fourth Proportional to 19,212.66, 28,816.56 and 5,173.81

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Solution

The fourth proportional to 19,212.66, 28,816.56 and 5,173.81 is: 7,760.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,212.66 : 28,816.56 = 5,173.81 : x
  2. Step 2: Convert to fraction form
    19,212.66/28,816.56 = 5,173.81/x
  3. Step 3: Cross multiply
    19,212.66x = 28,816.56 × 5,173.81
  4. Step 4: Simplify right side
    19,212.66x = 149,091,334.25
  5. Step 5: Solve for x
    x = 149,091,334.25/19,212.66
  6. Step 6: Final answer
    x = 7,760.06

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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.