Home / 8,986.33-12,406.31-6,845.05

Finding the Fourth Proportional to 8,986.33, 12,406.31 and 6,845.05

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Solution

The fourth proportional to 8,986.33, 12,406.31 and 6,845.05 is: 9,450.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,986.33 : 12,406.31 = 6,845.05 : x
  2. Step 2: Convert to fraction form
    8,986.33/12,406.31 = 6,845.05/x
  3. Step 3: Cross multiply
    8,986.33x = 12,406.31 × 6,845.05
  4. Step 4: Simplify right side
    8,986.33x = 84,921,812.27
  5. Step 5: Solve for x
    x = 84,921,812.27/8,986.33
  6. Step 6: Final answer
    x = 9,450.11

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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.