Home / 9,489.26-14,239.35-3,942.78

Finding the Fourth Proportional to 9,489.26, 14,239.35 and 3,942.78

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Solution

The fourth proportional to 9,489.26, 14,239.35 and 3,942.78 is: 5,916.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,489.26 : 14,239.35 = 3,942.78 : x
  2. Step 2: Convert to fraction form
    9,489.26/14,239.35 = 3,942.78/x
  3. Step 3: Cross multiply
    9,489.26x = 14,239.35 × 3,942.78
  4. Step 4: Simplify right side
    9,489.26x = 56,142,624.39
  5. Step 5: Solve for x
    x = 56,142,624.39/9,489.26
  6. Step 6: Final answer
    x = 5,916.44

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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.