Home / 13,205.52-19,786.68-7,995.60

Finding the Fourth Proportional to 13,205.52, 19,786.68 and 7,995.60

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Solution

The fourth proportional to 13,205.52, 19,786.68 and 7,995.60 is: 11,980.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,205.52 : 19,786.68 = 7,995.60 : x
  2. Step 2: Convert to fraction form
    13,205.52/19,786.68 = 7,995.60/x
  3. Step 3: Cross multiply
    13,205.52x = 19,786.68 × 7,995.60
  4. Step 4: Simplify right side
    13,205.52x = 158,206,378.61
  5. Step 5: Solve for x
    x = 158,206,378.61/13,205.52
  6. Step 6: Final answer
    x = 11,980.32

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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.