Home / 13,453.79-18,555.93-11,942.96

Finding the Fourth Proportional to 13,453.79, 18,555.93 and 11,942.96

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Solution

The fourth proportional to 13,453.79, 18,555.93 and 11,942.96 is: 16,472.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,453.79 : 18,555.93 = 11,942.96 : x
  2. Step 2: Convert to fraction form
    13,453.79/18,555.93 = 11,942.96/x
  3. Step 3: Cross multiply
    13,453.79x = 18,555.93 × 11,942.96
  4. Step 4: Simplify right side
    13,453.79x = 221,612,636.97
  5. Step 5: Solve for x
    x = 221,612,636.97/13,453.79
  6. Step 6: Final answer
    x = 16,472.14

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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.