Home / 7,640.21-10,550.70-4,993.94

Finding the Fourth Proportional to 7,640.21, 10,550.70 and 4,993.94

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Solution

The fourth proportional to 7,640.21, 10,550.70 and 4,993.94 is: 6,896.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,640.21 : 10,550.70 = 4,993.94 : x
  2. Step 2: Convert to fraction form
    7,640.21/10,550.70 = 4,993.94/x
  3. Step 3: Cross multiply
    7,640.21x = 10,550.70 × 4,993.94
  4. Step 4: Simplify right side
    7,640.21x = 52,689,510.00
  5. Step 5: Solve for x
    x = 52,689,510.00/7,640.21
  6. Step 6: Final answer
    x = 6,896.35

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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.