Home / 19,181.62-28,762.66-8,784.46

Finding the Fourth Proportional to 19,181.62, 28,762.66 and 8,784.46

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Solution

The fourth proportional to 19,181.62, 28,762.66 and 8,784.46 is: 13,172.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,181.62 : 28,762.66 = 8,784.46 : x
  2. Step 2: Convert to fraction form
    19,181.62/28,762.66 = 8,784.46/x
  3. Step 3: Cross multiply
    19,181.62x = 28,762.66 × 8,784.46
  4. Step 4: Simplify right side
    19,181.62x = 252,664,436.26
  5. Step 5: Solve for x
    x = 252,664,436.26/19,181.62
  6. Step 6: Final answer
    x = 13,172.22

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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.