Home / 8,378.20-11,562.26-5,020.38

Finding the Fourth Proportional to 8,378.20, 11,562.26 and 5,020.38

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Solution

The fourth proportional to 8,378.20, 11,562.26 and 5,020.38 is: 6,928.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,378.20 : 11,562.26 = 5,020.38 : x
  2. Step 2: Convert to fraction form
    8,378.20/11,562.26 = 5,020.38/x
  3. Step 3: Cross multiply
    8,378.20x = 11,562.26 × 5,020.38
  4. Step 4: Simplify right side
    8,378.20x = 58,046,881.05
  5. Step 5: Solve for x
    x = 58,046,881.05/8,378.20
  6. Step 6: Final answer
    x = 6,928.33

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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.