Home / 8,934.50-13,407.89-3,091.12

Finding the Fourth Proportional to 8,934.50, 13,407.89 and 3,091.12

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Solution

The fourth proportional to 8,934.50, 13,407.89 and 3,091.12 is: 4,638.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,934.50 : 13,407.89 = 3,091.12 : x
  2. Step 2: Convert to fraction form
    8,934.50/13,407.89 = 3,091.12/x
  3. Step 3: Cross multiply
    8,934.50x = 13,407.89 × 3,091.12
  4. Step 4: Simplify right side
    8,934.50x = 41,445,396.94
  5. Step 5: Solve for x
    x = 41,445,396.94/8,934.50
  6. Step 6: Final answer
    x = 4,638.80

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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.