Home / 11,612.73-17,420.58-4,220.67

Finding the Fourth Proportional to 11,612.73, 17,420.58 and 4,220.67

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Solution

The fourth proportional to 11,612.73, 17,420.58 and 4,220.67 is: 6,331.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,612.73 : 17,420.58 = 4,220.67 : x
  2. Step 2: Convert to fraction form
    11,612.73/17,420.58 = 4,220.67/x
  3. Step 3: Cross multiply
    11,612.73x = 17,420.58 × 4,220.67
  4. Step 4: Simplify right side
    11,612.73x = 73,526,519.39
  5. Step 5: Solve for x
    x = 73,526,519.39/11,612.73
  6. Step 6: Final answer
    x = 6,331.54

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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.