Home / 13,220.55-18,195.84-11,596.50

Finding the Fourth Proportional to 13,220.55, 18,195.84 and 11,596.50

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Solution

The fourth proportional to 13,220.55, 18,195.84 and 11,596.50 is: 15,960.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,220.55 : 18,195.84 = 11,596.50 : x
  2. Step 2: Convert to fraction form
    13,220.55/18,195.84 = 11,596.50/x
  3. Step 3: Cross multiply
    13,220.55x = 18,195.84 × 11,596.50
  4. Step 4: Simplify right side
    13,220.55x = 211,008,058.56
  5. Step 5: Solve for x
    x = 211,008,058.56/13,220.55
  6. Step 6: Final answer
    x = 15,960.61

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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.