Home / 8,127.22-12,190.83-1,971.22

Finding the Fourth Proportional to 8,127.22, 12,190.83 and 1,971.22

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Solution

The fourth proportional to 8,127.22, 12,190.83 and 1,971.22 is: 2,956.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,127.22 : 12,190.83 = 1,971.22 : x
  2. Step 2: Convert to fraction form
    8,127.22/12,190.83 = 1,971.22/x
  3. Step 3: Cross multiply
    8,127.22x = 12,190.83 × 1,971.22
  4. Step 4: Simplify right side
    8,127.22x = 24,030,807.91
  5. Step 5: Solve for x
    x = 24,030,807.91/8,127.22
  6. Step 6: Final answer
    x = 2,956.83

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Similar ratio
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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.