Home / 11,821.15-17,716.65-6,277.15

Finding the Fourth Proportional to 11,821.15, 17,716.65 and 6,277.15

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Solution

The fourth proportional to 11,821.15, 17,716.65 and 6,277.15 is: 9,407.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,821.15 : 17,716.65 = 6,277.15 : x
  2. Step 2: Convert to fraction form
    11,821.15/17,716.65 = 6,277.15/x
  3. Step 3: Cross multiply
    11,821.15x = 17,716.65 × 6,277.15
  4. Step 4: Simplify right side
    11,821.15x = 111,210,069.55
  5. Step 5: Solve for x
    x = 111,210,069.55/11,821.15
  6. Step 6: Final answer
    x = 9,407.72

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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.