Home / 7,903.48-11,853.78-3,520.12

Finding the Fourth Proportional to 7,903.48, 11,853.78 and 3,520.12

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Solution

The fourth proportional to 7,903.48, 11,853.78 and 3,520.12 is: 5,279.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,903.48 : 11,853.78 = 3,520.12 : x
  2. Step 2: Convert to fraction form
    7,903.48/11,853.78 = 3,520.12/x
  3. Step 3: Cross multiply
    7,903.48x = 11,853.78 × 3,520.12
  4. Step 4: Simplify right side
    7,903.48x = 41,726,728.05
  5. Step 5: Solve for x
    x = 41,726,728.05/7,903.48
  6. Step 6: Final answer
    x = 5,279.54

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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.