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Finding the Fourth Proportional to 8,763.56, 13,130.76 and 3,825.80

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Solution

The fourth proportional to 8,763.56, 13,130.76 and 3,825.80 is: 5,732.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,763.56 : 13,130.76 = 3,825.80 : x
  2. Step 2: Convert to fraction form
    8,763.56/13,130.76 = 3,825.80/x
  3. Step 3: Cross multiply
    8,763.56x = 13,130.76 × 3,825.80
  4. Step 4: Simplify right side
    8,763.56x = 50,235,661.61
  5. Step 5: Solve for x
    x = 50,235,661.61/8,763.56
  6. Step 6: Final answer
    x = 5,732.33

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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.