Home / 13,091.20-19,629.80-6,836.08

Finding the Fourth Proportional to 13,091.20, 19,629.80 and 6,836.08

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Solution

The fourth proportional to 13,091.20, 19,629.80 and 6,836.08 is: 10,250.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,091.20 : 19,629.80 = 6,836.08 : x
  2. Step 2: Convert to fraction form
    13,091.20/19,629.80 = 6,836.08/x
  3. Step 3: Cross multiply
    13,091.20x = 19,629.80 × 6,836.08
  4. Step 4: Simplify right side
    13,091.20x = 134,190,883.18
  5. Step 5: Solve for x
    x = 134,190,883.18/13,091.20
  6. Step 6: Final answer
    x = 10,250.46

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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.