Home / 11,801.80-17,664.30-9,190.60

Finding the Fourth Proportional to 11,801.80, 17,664.30 and 9,190.60

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Solution

The fourth proportional to 11,801.80, 17,664.30 and 9,190.60 is: 13,756.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,801.80 : 17,664.30 = 9,190.60 : x
  2. Step 2: Convert to fraction form
    11,801.80/17,664.30 = 9,190.60/x
  3. Step 3: Cross multiply
    11,801.80x = 17,664.30 × 9,190.60
  4. Step 4: Simplify right side
    11,801.80x = 162,345,515.58
  5. Step 5: Solve for x
    x = 162,345,515.58/11,801.80
  6. Step 6: Final answer
    x = 13,756.00

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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.