Home / 11,583.94-15,985.82-6,278.72

Finding the Fourth Proportional to 11,583.94, 15,985.82 and 6,278.72

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Solution

The fourth proportional to 11,583.94, 15,985.82 and 6,278.72 is: 8,664.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,583.94 : 15,985.82 = 6,278.72 : x
  2. Step 2: Convert to fraction form
    11,583.94/15,985.82 = 6,278.72/x
  3. Step 3: Cross multiply
    11,583.94x = 15,985.82 × 6,278.72
  4. Step 4: Simplify right side
    11,583.94x = 100,370,487.75
  5. Step 5: Solve for x
    x = 100,370,487.75/11,583.94
  6. Step 6: Final answer
    x = 8,664.62

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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.