Home / 10,319.76-15,479.64-3,745.94

Finding the Fourth Proportional to 10,319.76, 15,479.64 and 3,745.94

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Solution

The fourth proportional to 10,319.76, 15,479.64 and 3,745.94 is: 5,618.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,319.76 : 15,479.64 = 3,745.94 : x
  2. Step 2: Convert to fraction form
    10,319.76/15,479.64 = 3,745.94/x
  3. Step 3: Cross multiply
    10,319.76x = 15,479.64 × 3,745.94
  4. Step 4: Simplify right side
    10,319.76x = 57,985,725.26
  5. Step 5: Solve for x
    x = 57,985,725.26/10,319.76
  6. Step 6: Final answer
    x = 5,618.90

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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.