Home / 11,921.46-16,453.58-7,206.45

Finding the Fourth Proportional to 11,921.46, 16,453.58 and 7,206.45

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Solution

The fourth proportional to 11,921.46, 16,453.58 and 7,206.45 is: 9,946.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,921.46 : 16,453.58 = 7,206.45 : x
  2. Step 2: Convert to fraction form
    11,921.46/16,453.58 = 7,206.45/x
  3. Step 3: Cross multiply
    11,921.46x = 16,453.58 × 7,206.45
  4. Step 4: Simplify right side
    11,921.46x = 118,571,865.56
  5. Step 5: Solve for x
    x = 118,571,865.56/11,921.46
  6. Step 6: Final answer
    x = 9,946.09

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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.