Home / 13,223.24-18,246.90-7,556.85

Finding the Fourth Proportional to 13,223.24, 18,246.90 and 7,556.85

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Solution

The fourth proportional to 13,223.24, 18,246.90 and 7,556.85 is: 10,427.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,223.24 : 18,246.90 = 7,556.85 : x
  2. Step 2: Convert to fraction form
    13,223.24/18,246.90 = 7,556.85/x
  3. Step 3: Cross multiply
    13,223.24x = 18,246.90 × 7,556.85
  4. Step 4: Simplify right side
    13,223.24x = 137,889,086.27
  5. Step 5: Solve for x
    x = 137,889,086.27/13,223.24
  6. Step 6: Final answer
    x = 10,427.78

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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.