Home / 18,799.20-28,190.52-9,435.60

Finding the Fourth Proportional to 18,799.20, 28,190.52 and 9,435.60

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Solution

The fourth proportional to 18,799.20, 28,190.52 and 9,435.60 is: 14,149.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,799.20 : 28,190.52 = 9,435.60 : x
  2. Step 2: Convert to fraction form
    18,799.20/28,190.52 = 9,435.60/x
  3. Step 3: Cross multiply
    18,799.20x = 28,190.52 × 9,435.60
  4. Step 4: Simplify right side
    18,799.20x = 265,994,470.51
  5. Step 5: Solve for x
    x = 265,994,470.51/18,799.20
  6. Step 6: Final answer
    x = 14,149.24

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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.