Home / 8,145.42-12,191.40-6,186.84

Finding the Fourth Proportional to 8,145.42, 12,191.40 and 6,186.84

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Solution

The fourth proportional to 8,145.42, 12,191.40 and 6,186.84 is: 9,259.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,145.42 : 12,191.40 = 6,186.84 : x
  2. Step 2: Convert to fraction form
    8,145.42/12,191.40 = 6,186.84/x
  3. Step 3: Cross multiply
    8,145.42x = 12,191.40 × 6,186.84
  4. Step 4: Simplify right side
    8,145.42x = 75,426,241.18
  5. Step 5: Solve for x
    x = 75,426,241.18/8,145.42
  6. Step 6: Final answer
    x = 9,259.96

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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.