Home / 8,169.82-12,270.93-6,999.37

Finding the Fourth Proportional to 8,169.82, 12,270.93 and 6,999.37

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Solution

The fourth proportional to 8,169.82, 12,270.93 and 6,999.37 is: 10,512.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,169.82 : 12,270.93 = 6,999.37 : x
  2. Step 2: Convert to fraction form
    8,169.82/12,270.93 = 6,999.37/x
  3. Step 3: Cross multiply
    8,169.82x = 12,270.93 × 6,999.37
  4. Step 4: Simplify right side
    8,169.82x = 85,888,779.31
  5. Step 5: Solve for x
    x = 85,888,779.31/8,169.82
  6. Step 6: Final answer
    x = 10,512.93

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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.