Home / 9,211.86-13,815.78-2,636.28

Finding the Fourth Proportional to 9,211.86, 13,815.78 and 2,636.28

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Solution

The fourth proportional to 9,211.86, 13,815.78 and 2,636.28 is: 3,953.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,211.86 : 13,815.78 = 2,636.28 : x
  2. Step 2: Convert to fraction form
    9,211.86/13,815.78 = 2,636.28/x
  3. Step 3: Cross multiply
    9,211.86x = 13,815.78 × 2,636.28
  4. Step 4: Simplify right side
    9,211.86x = 36,422,264.50
  5. Step 5: Solve for x
    x = 36,422,264.50/9,211.86
  6. Step 6: Final answer
    x = 3,953.84

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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.