Home / 9,942.80-14,922.60-4,103.60

Finding the Fourth Proportional to 9,942.80, 14,922.60 and 4,103.60

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Solution

The fourth proportional to 9,942.80, 14,922.60 and 4,103.60 is: 6,158.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,942.80 : 14,922.60 = 4,103.60 : x
  2. Step 2: Convert to fraction form
    9,942.80/14,922.60 = 4,103.60/x
  3. Step 3: Cross multiply
    9,942.80x = 14,922.60 × 4,103.60
  4. Step 4: Simplify right side
    9,942.80x = 61,236,381.36
  5. Step 5: Solve for x
    x = 61,236,381.36/9,942.80
  6. Step 6: Final answer
    x = 6,158.87

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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.