Home / 19,274.15-28,916.37-8,181.47

Finding the Fourth Proportional to 19,274.15, 28,916.37 and 8,181.47

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Solution

The fourth proportional to 19,274.15, 28,916.37 and 8,181.47 is: 12,274.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,274.15 : 28,916.37 = 8,181.47 : x
  2. Step 2: Convert to fraction form
    19,274.15/28,916.37 = 8,181.47/x
  3. Step 3: Cross multiply
    19,274.15x = 28,916.37 × 8,181.47
  4. Step 4: Simplify right side
    19,274.15x = 236,578,413.66
  5. Step 5: Solve for x
    x = 236,578,413.66/19,274.15
  6. Step 6: Final answer
    x = 12,274.39

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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.