Home / 12,119.22-18,186.60-7,967.58

Finding the Fourth Proportional to 12,119.22, 18,186.60 and 7,967.58

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Solution

The fourth proportional to 12,119.22, 18,186.60 and 7,967.58 is: 11,956.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,119.22 : 18,186.60 = 7,967.58 : x
  2. Step 2: Convert to fraction form
    12,119.22/18,186.60 = 7,967.58/x
  3. Step 3: Cross multiply
    12,119.22x = 18,186.60 × 7,967.58
  4. Step 4: Simplify right side
    12,119.22x = 144,903,190.43
  5. Step 5: Solve for x
    x = 144,903,190.43/12,119.22
  6. Step 6: Final answer
    x = 11,956.48

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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.