Home / 8,161.08-12,222.63-7,936.60

Finding the Fourth Proportional to 8,161.08, 12,222.63 and 7,936.60

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Solution

The fourth proportional to 8,161.08, 12,222.63 and 7,936.60 is: 11,886.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,161.08 : 12,222.63 = 7,936.60 : x
  2. Step 2: Convert to fraction form
    8,161.08/12,222.63 = 7,936.60/x
  3. Step 3: Cross multiply
    8,161.08x = 12,222.63 × 7,936.60
  4. Step 4: Simplify right side
    8,161.08x = 97,006,125.26
  5. Step 5: Solve for x
    x = 97,006,125.26/8,161.08
  6. Step 6: Final answer
    x = 11,886.43

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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.