Home / 13,825.26-20,716.86-10,129.94

Finding the Fourth Proportional to 13,825.26, 20,716.86 and 10,129.94

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Solution

The fourth proportional to 13,825.26, 20,716.86 and 10,129.94 is: 15,179.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,825.26 : 20,716.86 = 10,129.94 : x
  2. Step 2: Convert to fraction form
    13,825.26/20,716.86 = 10,129.94/x
  3. Step 3: Cross multiply
    13,825.26x = 20,716.86 × 10,129.94
  4. Step 4: Simplify right side
    13,825.26x = 209,860,548.79
  5. Step 5: Solve for x
    x = 209,860,548.79/13,825.26
  6. Step 6: Final answer
    x = 15,179.50

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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.