Home / 10,930.31-16,411.87-6,255.60

Finding the Fourth Proportional to 10,930.31, 16,411.87 and 6,255.60

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Solution

The fourth proportional to 10,930.31, 16,411.87 and 6,255.60 is: 9,392.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,930.31 : 16,411.87 = 6,255.60 : x
  2. Step 2: Convert to fraction form
    10,930.31/16,411.87 = 6,255.60/x
  3. Step 3: Cross multiply
    10,930.31x = 16,411.87 × 6,255.60
  4. Step 4: Simplify right side
    10,930.31x = 102,666,062.69
  5. Step 5: Solve for x
    x = 102,666,062.69/10,930.31
  6. Step 6: Final answer
    x = 9,392.79

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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.