Home / 19,185.75-28,778.64-5,334.75

Finding the Fourth Proportional to 19,185.75, 28,778.64 and 5,334.75

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Solution

The fourth proportional to 19,185.75, 28,778.64 and 5,334.75 is: 8,002.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,185.75 : 28,778.64 = 5,334.75 : x
  2. Step 2: Convert to fraction form
    19,185.75/28,778.64 = 5,334.75/x
  3. Step 3: Cross multiply
    19,185.75x = 28,778.64 × 5,334.75
  4. Step 4: Simplify right side
    19,185.75x = 153,526,849.74
  5. Step 5: Solve for x
    x = 153,526,849.74/19,185.75
  6. Step 6: Final answer
    x = 8,002.13

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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.