Home / 13,836.47-20,760.80-7,261.07

Finding the Fourth Proportional to 13,836.47, 20,760.80 and 7,261.07

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Solution

The fourth proportional to 13,836.47, 20,760.80 and 7,261.07 is: 10,894.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,836.47 : 20,760.80 = 7,261.07 : x
  2. Step 2: Convert to fraction form
    13,836.47/20,760.80 = 7,261.07/x
  3. Step 3: Cross multiply
    13,836.47x = 20,760.80 × 7,261.07
  4. Step 4: Simplify right side
    13,836.47x = 150,745,481.95
  5. Step 5: Solve for x
    x = 150,745,481.95/13,836.47
  6. Step 6: Final answer
    x = 10,894.80

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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.