Home / 18,804.96-28,212.24-7,118.28

Finding the Fourth Proportional to 18,804.96, 28,212.24 and 7,118.28

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Solution

The fourth proportional to 18,804.96, 28,212.24 and 7,118.28 is: 10,679.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,804.96 : 28,212.24 = 7,118.28 : x
  2. Step 2: Convert to fraction form
    18,804.96/28,212.24 = 7,118.28/x
  3. Step 3: Cross multiply
    18,804.96x = 28,212.24 × 7,118.28
  4. Step 4: Simplify right side
    18,804.96x = 200,822,623.75
  5. Step 5: Solve for x
    x = 200,822,623.75/18,804.96
  6. Step 6: Final answer
    x = 10,679.24

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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.