Home / 8,083.40-12,127.44-2,889.68

Finding the Fourth Proportional to 8,083.40, 12,127.44 and 2,889.68

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Solution

The fourth proportional to 8,083.40, 12,127.44 and 2,889.68 is: 4,335.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,083.40 : 12,127.44 = 2,889.68 : x
  2. Step 2: Convert to fraction form
    8,083.40/12,127.44 = 2,889.68/x
  3. Step 3: Cross multiply
    8,083.40x = 12,127.44 × 2,889.68
  4. Step 4: Simplify right side
    8,083.40x = 35,044,420.82
  5. Step 5: Solve for x
    x = 35,044,420.82/8,083.40
  6. Step 6: Final answer
    x = 4,335.36

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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.