Home / 13,120.08-19,680.03-5,622.54

Finding the Fourth Proportional to 13,120.08, 19,680.03 and 5,622.54

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Solution

The fourth proportional to 13,120.08, 19,680.03 and 5,622.54 is: 8,433.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,120.08 : 19,680.03 = 5,622.54 : x
  2. Step 2: Convert to fraction form
    13,120.08/19,680.03 = 5,622.54/x
  3. Step 3: Cross multiply
    13,120.08x = 19,680.03 × 5,622.54
  4. Step 4: Simplify right side
    13,120.08x = 110,651,755.88
  5. Step 5: Solve for x
    x = 110,651,755.88/13,120.08
  6. Step 6: Final answer
    x = 8,433.77

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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.