Home / 11,821.26-17,734.95-5,245.86

Finding the Fourth Proportional to 11,821.26, 17,734.95 and 5,245.86

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Solution

The fourth proportional to 11,821.26, 17,734.95 and 5,245.86 is: 7,870.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,821.26 : 17,734.95 = 5,245.86 : x
  2. Step 2: Convert to fraction form
    11,821.26/17,734.95 = 5,245.86/x
  3. Step 3: Cross multiply
    11,821.26x = 17,734.95 × 5,245.86
  4. Step 4: Simplify right side
    11,821.26x = 93,035,064.81
  5. Step 5: Solve for x
    x = 93,035,064.81/11,821.26
  6. Step 6: Final answer
    x = 7,870.15

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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.