Home / 15,222.44-20,993.37-9,557.72

Finding the Fourth Proportional to 15,222.44, 20,993.37 and 9,557.72

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Solution

The fourth proportional to 15,222.44, 20,993.37 and 9,557.72 is: 13,181.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,222.44 : 20,993.37 = 9,557.72 : x
  2. Step 2: Convert to fraction form
    15,222.44/20,993.37 = 9,557.72/x
  3. Step 3: Cross multiply
    15,222.44x = 20,993.37 × 9,557.72
  4. Step 4: Simplify right side
    15,222.44x = 200,648,647.35
  5. Step 5: Solve for x
    x = 200,648,647.35/15,222.44
  6. Step 6: Final answer
    x = 13,181.11

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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.