Home / 18,900.25-28,350.99-5,752.75

Finding the Fourth Proportional to 18,900.25, 28,350.99 and 5,752.75

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Solution

The fourth proportional to 18,900.25, 28,350.99 and 5,752.75 is: 8,629.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,900.25 : 28,350.99 = 5,752.75 : x
  2. Step 2: Convert to fraction form
    18,900.25/28,350.99 = 5,752.75/x
  3. Step 3: Cross multiply
    18,900.25x = 28,350.99 × 5,752.75
  4. Step 4: Simplify right side
    18,900.25x = 163,096,157.72
  5. Step 5: Solve for x
    x = 163,096,157.72/18,900.25
  6. Step 6: Final answer
    x = 8,629.31

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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.