Home / 11,280.48-16,920.51-3,884.77

Finding the Fourth Proportional to 11,280.48, 16,920.51 and 3,884.77

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Solution

The fourth proportional to 11,280.48, 16,920.51 and 3,884.77 is: 5,827.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,280.48 : 16,920.51 = 3,884.77 : x
  2. Step 2: Convert to fraction form
    11,280.48/16,920.51 = 3,884.77/x
  3. Step 3: Cross multiply
    11,280.48x = 16,920.51 × 3,884.77
  4. Step 4: Simplify right side
    11,280.48x = 65,732,310.78
  5. Step 5: Solve for x
    x = 65,732,310.78/11,280.48
  6. Step 6: Final answer
    x = 5,827.09

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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.