Home / 11,779.86-17,671.71-3,880.02

Finding the Fourth Proportional to 11,779.86, 17,671.71 and 3,880.02

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Solution

The fourth proportional to 11,779.86, 17,671.71 and 3,880.02 is: 5,820.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,779.86 : 17,671.71 = 3,880.02 : x
  2. Step 2: Convert to fraction form
    11,779.86/17,671.71 = 3,880.02/x
  3. Step 3: Cross multiply
    11,779.86x = 17,671.71 × 3,880.02
  4. Step 4: Simplify right side
    11,779.86x = 68,566,588.23
  5. Step 5: Solve for x
    x = 68,566,588.23/11,779.86
  6. Step 6: Final answer
    x = 5,820.66

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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.