Home / 9,108.14-13,667.87-8,231.70

Finding the Fourth Proportional to 9,108.14, 13,667.87 and 8,231.70

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Solution

The fourth proportional to 9,108.14, 13,667.87 and 8,231.70 is: 12,352.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,108.14 : 13,667.87 = 8,231.70 : x
  2. Step 2: Convert to fraction form
    9,108.14/13,667.87 = 8,231.70/x
  3. Step 3: Cross multiply
    9,108.14x = 13,667.87 × 8,231.70
  4. Step 4: Simplify right side
    9,108.14x = 112,509,805.48
  5. Step 5: Solve for x
    x = 112,509,805.48/9,108.14
  6. Step 6: Final answer
    x = 12,352.67

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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.