Home / 18,740.58-28,107.62-7,053.90

Finding the Fourth Proportional to 18,740.58, 28,107.62 and 7,053.90

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Solution

The fourth proportional to 18,740.58, 28,107.62 and 7,053.90 is: 10,579.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,740.58 : 28,107.62 = 7,053.90 : x
  2. Step 2: Convert to fraction form
    18,740.58/28,107.62 = 7,053.90/x
  3. Step 3: Cross multiply
    18,740.58x = 28,107.62 × 7,053.90
  4. Step 4: Simplify right side
    18,740.58x = 198,268,340.72
  5. Step 5: Solve for x
    x = 198,268,340.72/18,740.58
  6. Step 6: Final answer
    x = 10,579.63

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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.