Home / 8,127.96-12,193.35-2,581.20

Finding the Fourth Proportional to 8,127.96, 12,193.35 and 2,581.20

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Solution

The fourth proportional to 8,127.96, 12,193.35 and 2,581.20 is: 3,872.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,127.96 : 12,193.35 = 2,581.20 : x
  2. Step 2: Convert to fraction form
    8,127.96/12,193.35 = 2,581.20/x
  3. Step 3: Cross multiply
    8,127.96x = 12,193.35 × 2,581.20
  4. Step 4: Simplify right side
    8,127.96x = 31,473,475.02
  5. Step 5: Solve for x
    x = 31,473,475.02/8,127.96
  6. Step 6: Final answer
    x = 3,872.25

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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.