Home / 13,022.12-19,508.70-6,440.60

Finding the Fourth Proportional to 13,022.12, 19,508.70 and 6,440.60

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Solution

The fourth proportional to 13,022.12, 19,508.70 and 6,440.60 is: 9,648.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,022.12 : 19,508.70 = 6,440.60 : x
  2. Step 2: Convert to fraction form
    13,022.12/19,508.70 = 6,440.60/x
  3. Step 3: Cross multiply
    13,022.12x = 19,508.70 × 6,440.60
  4. Step 4: Simplify right side
    13,022.12x = 125,647,733.22
  5. Step 5: Solve for x
    x = 125,647,733.22/13,022.12
  6. Step 6: Final answer
    x = 9,648.79

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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.