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Finding the Fourth Proportional to 9,111.75, 13,667.63 and 2,955.75

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Solution

The fourth proportional to 9,111.75, 13,667.63 and 2,955.75 is: 4,433.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,111.75 : 13,667.63 = 2,955.75 : x
  2. Step 2: Convert to fraction form
    9,111.75/13,667.63 = 2,955.75/x
  3. Step 3: Cross multiply
    9,111.75x = 13,667.63 × 2,955.75
  4. Step 4: Simplify right side
    9,111.75x = 40,398,097.37
  5. Step 5: Solve for x
    x = 40,398,097.37/9,111.75
  6. Step 6: Final answer
    x = 4,433.63

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Similar ratio
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1.5x scale

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.