Home / 8,127.74-12,189.08-2,582.48

Finding the Fourth Proportional to 8,127.74, 12,189.08 and 2,582.48

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Solution

The fourth proportional to 8,127.74, 12,189.08 and 2,582.48 is: 3,872.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,127.74 : 12,189.08 = 2,582.48 : x
  2. Step 2: Convert to fraction form
    8,127.74/12,189.08 = 2,582.48/x
  3. Step 3: Cross multiply
    8,127.74x = 12,189.08 × 2,582.48
  4. Step 4: Simplify right side
    8,127.74x = 31,478,092.25
  5. Step 5: Solve for x
    x = 31,478,092.25/8,127.74
  6. Step 6: Final answer
    x = 3,872.92

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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.