Home / 13,453.79-18,555.16-11,942.46

Finding the Fourth Proportional to 13,453.79, 18,555.16 and 11,942.46

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Solution

The fourth proportional to 13,453.79, 18,555.16 and 11,942.46 is: 16,470.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,453.79 : 18,555.16 = 11,942.46 : x
  2. Step 2: Convert to fraction form
    13,453.79/18,555.16 = 11,942.46/x
  3. Step 3: Cross multiply
    13,453.79x = 18,555.16 × 11,942.46
  4. Step 4: Simplify right side
    13,453.79x = 221,594,103.61
  5. Step 5: Solve for x
    x = 221,594,103.61/13,453.79
  6. Step 6: Final answer
    x = 16,470.76

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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.