Home / 13,205.40-19,809.09-4,440.30

Finding the Fourth Proportional to 13,205.40, 19,809.09 and 4,440.30

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Solution

The fourth proportional to 13,205.40, 19,809.09 and 4,440.30 is: 6,660.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,205.40 : 19,809.09 = 4,440.30 : x
  2. Step 2: Convert to fraction form
    13,205.40/19,809.09 = 4,440.30/x
  3. Step 3: Cross multiply
    13,205.40x = 19,809.09 × 4,440.30
  4. Step 4: Simplify right side
    13,205.40x = 87,958,302.33
  5. Step 5: Solve for x
    x = 87,958,302.33/13,205.40
  6. Step 6: Final answer
    x = 6,660.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.