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Finding the Fourth Proportional to 9,290.94, 13,939.02 and 3,956.82

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Solution

The fourth proportional to 9,290.94, 13,939.02 and 3,956.82 is: 5,936.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,290.94 : 13,939.02 = 3,956.82 : x
  2. Step 2: Convert to fraction form
    9,290.94/13,939.02 = 3,956.82/x
  3. Step 3: Cross multiply
    9,290.94x = 13,939.02 × 3,956.82
  4. Step 4: Simplify right side
    9,290.94x = 55,154,193.12
  5. Step 5: Solve for x
    x = 55,154,193.12/9,290.94
  6. Step 6: Final answer
    x = 5,936.34

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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.