Home / 8,667.36-13,006.98-3,120.75

Finding the Fourth Proportional to 8,667.36, 13,006.98 and 3,120.75

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Solution

The fourth proportional to 8,667.36, 13,006.98 and 3,120.75 is: 4,683.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,667.36 : 13,006.98 = 3,120.75 : x
  2. Step 2: Convert to fraction form
    8,667.36/13,006.98 = 3,120.75/x
  3. Step 3: Cross multiply
    8,667.36x = 13,006.98 × 3,120.75
  4. Step 4: Simplify right side
    8,667.36x = 40,591,517.23
  5. Step 5: Solve for x
    x = 40,591,517.23/8,667.36
  6. Step 6: Final answer
    x = 4,683.26

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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.