Home / 10,511.08-15,743.58-6,398.44

Finding the Fourth Proportional to 10,511.08, 15,743.58 and 6,398.44

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Solution

The fourth proportional to 10,511.08, 15,743.58 and 6,398.44 is: 9,583.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,511.08 : 15,743.58 = 6,398.44 : x
  2. Step 2: Convert to fraction form
    10,511.08/15,743.58 = 6,398.44/x
  3. Step 3: Cross multiply
    10,511.08x = 15,743.58 × 6,398.44
  4. Step 4: Simplify right side
    10,511.08x = 100,734,352.02
  5. Step 5: Solve for x
    x = 100,734,352.02/10,511.08
  6. Step 6: Final answer
    x = 9,583.63

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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.