Home / 11,583.71-15,985.60-6,278.56

Finding the Fourth Proportional to 11,583.71, 15,985.60 and 6,278.56

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Solution

The fourth proportional to 11,583.71, 15,985.60 and 6,278.56 is: 8,664.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,583.71 : 15,985.60 = 6,278.56 : x
  2. Step 2: Convert to fraction form
    11,583.71/15,985.60 = 6,278.56/x
  3. Step 3: Cross multiply
    11,583.71x = 15,985.60 × 6,278.56
  4. Step 4: Simplify right side
    11,583.71x = 100,366,618.31
  5. Step 5: Solve for x
    x = 100,366,618.31/11,583.71
  6. Step 6: Final answer
    x = 8,664.46

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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.