Home / 7,945.70-11,911.46-3,011.99

Finding the Fourth Proportional to 7,945.70, 11,911.46 and 3,011.99

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Solution

The fourth proportional to 7,945.70, 11,911.46 and 3,011.99 is: 4,515.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,945.70 : 11,911.46 = 3,011.99 : x
  2. Step 2: Convert to fraction form
    7,945.70/11,911.46 = 3,011.99/x
  3. Step 3: Cross multiply
    7,945.70x = 11,911.46 × 3,011.99
  4. Step 4: Simplify right side
    7,945.70x = 35,877,123.79
  5. Step 5: Solve for x
    x = 35,877,123.79/7,945.70
  6. Step 6: Final answer
    x = 4,515.29

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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.