Home / 18,683.24-28,019.38-6,993.72

Finding the Fourth Proportional to 18,683.24, 28,019.38 and 6,993.72

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Solution

The fourth proportional to 18,683.24, 28,019.38 and 6,993.72 is: 10,488.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,683.24 : 28,019.38 = 6,993.72 : x
  2. Step 2: Convert to fraction form
    18,683.24/28,019.38 = 6,993.72/x
  3. Step 3: Cross multiply
    18,683.24x = 28,019.38 × 6,993.72
  4. Step 4: Simplify right side
    18,683.24x = 195,959,698.29
  5. Step 5: Solve for x
    x = 195,959,698.29/18,683.24
  6. Step 6: Final answer
    x = 10,488.53

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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.