Home / 7,890.46-11,817.24-6,235.90

Finding the Fourth Proportional to 7,890.46, 11,817.24 and 6,235.90

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Solution

The fourth proportional to 7,890.46, 11,817.24 and 6,235.90 is: 9,339.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,890.46 : 11,817.24 = 6,235.90 : x
  2. Step 2: Convert to fraction form
    7,890.46/11,817.24 = 6,235.90/x
  3. Step 3: Cross multiply
    7,890.46x = 11,817.24 × 6,235.90
  4. Step 4: Simplify right side
    7,890.46x = 73,691,126.92
  5. Step 5: Solve for x
    x = 73,691,126.92/7,890.46
  6. Step 6: Final answer
    x = 9,339.27

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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.