Home / 7,538.94-11,315.34-3,843.72

Finding the Fourth Proportional to 7,538.94, 11,315.34 and 3,843.72

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Solution

The fourth proportional to 7,538.94, 11,315.34 and 3,843.72 is: 5,769.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,538.94 : 11,315.34 = 3,843.72 : x
  2. Step 2: Convert to fraction form
    7,538.94/11,315.34 = 3,843.72/x
  3. Step 3: Cross multiply
    7,538.94x = 11,315.34 × 3,843.72
  4. Step 4: Simplify right side
    7,538.94x = 43,492,998.66
  5. Step 5: Solve for x
    x = 43,492,998.66/7,538.94
  6. Step 6: Final answer
    x = 5,769.11

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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.