Home / 8,929.78-12,322.29-4,949.84

Finding the Fourth Proportional to 8,929.78, 12,322.29 and 4,949.84

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Solution

The fourth proportional to 8,929.78, 12,322.29 and 4,949.84 is: 6,830.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,929.78 : 12,322.29 = 4,949.84 : x
  2. Step 2: Convert to fraction form
    8,929.78/12,322.29 = 4,949.84/x
  3. Step 3: Cross multiply
    8,929.78x = 12,322.29 × 4,949.84
  4. Step 4: Simplify right side
    8,929.78x = 60,993,413.30
  5. Step 5: Solve for x
    x = 60,993,413.30/8,929.78
  6. Step 6: Final answer
    x = 6,830.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.