Home / 7,821.42-11,730.48-4,660.26

Finding the Fourth Proportional to 7,821.42, 11,730.48 and 4,660.26

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Solution

The fourth proportional to 7,821.42, 11,730.48 and 4,660.26 is: 6,989.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,821.42 : 11,730.48 = 4,660.26 : x
  2. Step 2: Convert to fraction form
    7,821.42/11,730.48 = 4,660.26/x
  3. Step 3: Cross multiply
    7,821.42x = 11,730.48 × 4,660.26
  4. Step 4: Simplify right side
    7,821.42x = 54,667,086.72
  5. Step 5: Solve for x
    x = 54,667,086.72/7,821.42
  6. Step 6: Final answer
    x = 6,989.41

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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.