Home / 9,120.98-13,687.61-3,573.63

Finding the Fourth Proportional to 9,120.98, 13,687.61 and 3,573.63

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Solution

The fourth proportional to 9,120.98, 13,687.61 and 3,573.63 is: 5,362.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,120.98 : 13,687.61 = 3,573.63 : x
  2. Step 2: Convert to fraction form
    9,120.98/13,687.61 = 3,573.63/x
  3. Step 3: Cross multiply
    9,120.98x = 13,687.61 × 3,573.63
  4. Step 4: Simplify right side
    9,120.98x = 48,914,453.72
  5. Step 5: Solve for x
    x = 48,914,453.72/9,120.98
  6. Step 6: Final answer
    x = 5,362.85

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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.