Home / 10,511.57-15,745.49-4,969.35

Finding the Fourth Proportional to 10,511.57, 15,745.49 and 4,969.35

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Solution

The fourth proportional to 10,511.57, 15,745.49 and 4,969.35 is: 7,443.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,511.57 : 15,745.49 = 4,969.35 : x
  2. Step 2: Convert to fraction form
    10,511.57/15,745.49 = 4,969.35/x
  3. Step 3: Cross multiply
    10,511.57x = 15,745.49 × 4,969.35
  4. Step 4: Simplify right side
    10,511.57x = 78,244,844.52
  5. Step 5: Solve for x
    x = 78,244,844.52/10,511.57
  6. Step 6: Final answer
    x = 7,443.69

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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.