Home / 13,775.82-20,651.60-5,461.67

Finding the Fourth Proportional to 13,775.82, 20,651.60 and 5,461.67

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Solution

The fourth proportional to 13,775.82, 20,651.60 and 5,461.67 is: 8,187.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,775.82 : 20,651.60 = 5,461.67 : x
  2. Step 2: Convert to fraction form
    13,775.82/20,651.60 = 5,461.67/x
  3. Step 3: Cross multiply
    13,775.82x = 20,651.60 × 5,461.67
  4. Step 4: Simplify right side
    13,775.82x = 112,792,289.46
  5. Step 5: Solve for x
    x = 112,792,289.46/13,775.82
  6. Step 6: Final answer
    x = 8,187.70

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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.