Home / 11,817.06-16,292.34-9,684.78

Finding the Fourth Proportional to 11,817.06, 16,292.34 and 9,684.78

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Solution

The fourth proportional to 11,817.06, 16,292.34 and 9,684.78 is: 13,352.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,817.06 : 16,292.34 = 9,684.78 : x
  2. Step 2: Convert to fraction form
    11,817.06/16,292.34 = 9,684.78/x
  3. Step 3: Cross multiply
    11,817.06x = 16,292.34 × 9,684.78
  4. Step 4: Simplify right side
    11,817.06x = 157,787,728.59
  5. Step 5: Solve for x
    x = 157,787,728.59/11,817.06
  6. Step 6: Final answer
    x = 13,352.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.