Home / 7,022.80-10,505.40-6,331.60

Finding the Fourth Proportional to 7,022.80, 10,505.40 and 6,331.60

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Solution

The fourth proportional to 7,022.80, 10,505.40 and 6,331.60 is: 9,471.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,022.80 : 10,505.40 = 6,331.60 : x
  2. Step 2: Convert to fraction form
    7,022.80/10,505.40 = 6,331.60/x
  3. Step 3: Cross multiply
    7,022.80x = 10,505.40 × 6,331.60
  4. Step 4: Simplify right side
    7,022.80x = 66,515,990.64
  5. Step 5: Solve for x
    x = 66,515,990.64/7,022.80
  6. Step 6: Final answer
    x = 9,471.43

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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.