Home / 11,280.47-16,915.37-3,379.95

Finding the Fourth Proportional to 11,280.47, 16,915.37 and 3,379.95

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Solution

The fourth proportional to 11,280.47, 16,915.37 and 3,379.95 is: 5,068.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,280.47 : 16,915.37 = 3,379.95 : x
  2. Step 2: Convert to fraction form
    11,280.47/16,915.37 = 3,379.95/x
  3. Step 3: Cross multiply
    11,280.47x = 16,915.37 × 3,379.95
  4. Step 4: Simplify right side
    11,280.47x = 57,173,087.93
  5. Step 5: Solve for x
    x = 57,173,087.93/11,280.47
  6. Step 6: Final answer
    x = 5,068.33

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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.