Home / 11,012.12-16,518.18-3,220.94

Finding the Fourth Proportional to 11,012.12, 16,518.18 and 3,220.94

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Solution

The fourth proportional to 11,012.12, 16,518.18 and 3,220.94 is: 4,831.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,012.12 : 16,518.18 = 3,220.94 : x
  2. Step 2: Convert to fraction form
    11,012.12/16,518.18 = 3,220.94/x
  3. Step 3: Cross multiply
    11,012.12x = 16,518.18 × 3,220.94
  4. Step 4: Simplify right side
    11,012.12x = 53,203,984.10
  5. Step 5: Solve for x
    x = 53,203,984.10/11,012.12
  6. Step 6: Final answer
    x = 4,831.40

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.