Home / 13,446.30-18,556.34-7,396.79

Finding the Fourth Proportional to 13,446.30, 18,556.34 and 7,396.79

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Solution

The fourth proportional to 13,446.30, 18,556.34 and 7,396.79 is: 10,207.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,446.30 : 18,556.34 = 7,396.79 : x
  2. Step 2: Convert to fraction form
    13,446.30/18,556.34 = 7,396.79/x
  3. Step 3: Cross multiply
    13,446.30x = 18,556.34 × 7,396.79
  4. Step 4: Simplify right side
    13,446.30x = 137,257,415.03
  5. Step 5: Solve for x
    x = 137,257,415.03/13,446.30
  6. Step 6: Final answer
    x = 10,207.82

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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.