Home / 14,825.36-20,458.22-8,109.68

Finding the Fourth Proportional to 14,825.36, 20,458.22 and 8,109.68

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Solution

The fourth proportional to 14,825.36, 20,458.22 and 8,109.68 is: 11,190.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,825.36 : 20,458.22 = 8,109.68 : x
  2. Step 2: Convert to fraction form
    14,825.36/20,458.22 = 8,109.68/x
  3. Step 3: Cross multiply
    14,825.36x = 20,458.22 × 8,109.68
  4. Step 4: Simplify right side
    14,825.36x = 165,909,617.57
  5. Step 5: Solve for x
    x = 165,909,617.57/14,825.36
  6. Step 6: Final answer
    x = 11,190.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.