Home / 18,724.37-28,090.60-5,577.80

Finding the Fourth Proportional to 18,724.37, 28,090.60 and 5,577.80

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Solution

The fourth proportional to 18,724.37, 28,090.60 and 5,577.80 is: 8,367.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,724.37 : 28,090.60 = 5,577.80 : x
  2. Step 2: Convert to fraction form
    18,724.37/28,090.60 = 5,577.80/x
  3. Step 3: Cross multiply
    18,724.37x = 28,090.60 × 5,577.80
  4. Step 4: Simplify right side
    18,724.37x = 156,683,594.28
  5. Step 5: Solve for x
    x = 156,683,594.28/18,724.37
  6. Step 6: Final answer
    x = 8,367.90

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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.