Home / 12,118.18-16,724.58-6,812.88

Finding the Fourth Proportional to 12,118.18, 16,724.58 and 6,812.88

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Solution

The fourth proportional to 12,118.18, 16,724.58 and 6,812.88 is: 9,402.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,118.18 : 16,724.58 = 6,812.88 : x
  2. Step 2: Convert to fraction form
    12,118.18/16,724.58 = 6,812.88/x
  3. Step 3: Cross multiply
    12,118.18x = 16,724.58 × 6,812.88
  4. Step 4: Simplify right side
    12,118.18x = 113,942,556.59
  5. Step 5: Solve for x
    x = 113,942,556.59/12,118.18
  6. Step 6: Final answer
    x = 9,402.61

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.