Home / 18,783.12-25,922.44-10,399.62

Finding the Fourth Proportional to 18,783.12, 25,922.44 and 10,399.62

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Solution

The fourth proportional to 18,783.12, 25,922.44 and 10,399.62 is: 14,352.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,783.12 : 25,922.44 = 10,399.62 : x
  2. Step 2: Convert to fraction form
    18,783.12/25,922.44 = 10,399.62/x
  3. Step 3: Cross multiply
    18,783.12x = 25,922.44 × 10,399.62
  4. Step 4: Simplify right side
    18,783.12x = 269,583,525.47
  5. Step 5: Solve for x
    x = 269,583,525.47/18,783.12
  6. Step 6: Final answer
    x = 14,352.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.