Home / 11,583.96-15,985.94-6,278.86

Finding the Fourth Proportional to 11,583.96, 15,985.94 and 6,278.86

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Solution

The fourth proportional to 11,583.96, 15,985.94 and 6,278.86 is: 8,664.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,583.96 : 15,985.94 = 6,278.86 : x
  2. Step 2: Convert to fraction form
    11,583.96/15,985.94 = 6,278.86/x
  3. Step 3: Cross multiply
    11,583.96x = 15,985.94 × 6,278.86
  4. Step 4: Simplify right side
    11,583.96x = 100,373,479.23
  5. Step 5: Solve for x
    x = 100,373,479.23/11,583.96
  6. Step 6: Final answer
    x = 8,664.87

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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.