Home / 10,511.94-14,512.41-6,979.98

Finding the Fourth Proportional to 10,511.94, 14,512.41 and 6,979.98

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Solution

The fourth proportional to 10,511.94, 14,512.41 and 6,979.98 is: 9,636.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,511.94 : 14,512.41 = 6,979.98 : x
  2. Step 2: Convert to fraction form
    10,511.94/14,512.41 = 6,979.98/x
  3. Step 3: Cross multiply
    10,511.94x = 14,512.41 × 6,979.98
  4. Step 4: Simplify right side
    10,511.94x = 101,296,331.55
  5. Step 5: Solve for x
    x = 101,296,331.55/10,511.94
  6. Step 6: Final answer
    x = 9,636.31

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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.