Home / 7,982.28-11,015.62-4,445.48

Finding the Fourth Proportional to 7,982.28, 11,015.62 and 4,445.48

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Solution

The fourth proportional to 7,982.28, 11,015.62 and 4,445.48 is: 6,134.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,982.28 : 11,015.62 = 4,445.48 : x
  2. Step 2: Convert to fraction form
    7,982.28/11,015.62 = 4,445.48/x
  3. Step 3: Cross multiply
    7,982.28x = 11,015.62 × 4,445.48
  4. Step 4: Simplify right side
    7,982.28x = 48,969,718.40
  5. Step 5: Solve for x
    x = 48,969,718.40/7,982.28
  6. Step 6: Final answer
    x = 6,134.80

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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.