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Finding the Fourth Proportional to 7,951.50, 10,940.67 and 7,295.40

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Solution

The fourth proportional to 7,951.50, 10,940.67 and 7,295.40 is: 10,037.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,951.50 : 10,940.67 = 7,295.40 : x
  2. Step 2: Convert to fraction form
    7,951.50/10,940.67 = 7,295.40/x
  3. Step 3: Cross multiply
    7,951.50x = 10,940.67 × 7,295.40
  4. Step 4: Simplify right side
    7,951.50x = 79,816,563.92
  5. Step 5: Solve for x
    x = 79,816,563.92/7,951.50
  6. Step 6: Final answer
    x = 10,037.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.