Home / 19,212.63-28,816.58-5,173.76

Finding the Fourth Proportional to 19,212.63, 28,816.58 and 5,173.76

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Solution

The fourth proportional to 19,212.63, 28,816.58 and 5,173.76 is: 7,759.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,212.63 : 28,816.58 = 5,173.76 : x
  2. Step 2: Convert to fraction form
    19,212.63/28,816.58 = 5,173.76/x
  3. Step 3: Cross multiply
    19,212.63x = 28,816.58 × 5,173.76
  4. Step 4: Simplify right side
    19,212.63x = 149,089,898.99
  5. Step 5: Solve for x
    x = 149,089,898.99/19,212.63
  6. Step 6: Final answer
    x = 7,759.99

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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.