Home / 12,400.80-17,112.75-6,735.30

Finding the Fourth Proportional to 12,400.80, 17,112.75 and 6,735.30

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Solution

The fourth proportional to 12,400.80, 17,112.75 and 6,735.30 is: 9,294.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,400.80 : 17,112.75 = 6,735.30 : x
  2. Step 2: Convert to fraction form
    12,400.80/17,112.75 = 6,735.30/x
  3. Step 3: Cross multiply
    12,400.80x = 17,112.75 × 6,735.30
  4. Step 4: Simplify right side
    12,400.80x = 115,259,505.08
  5. Step 5: Solve for x
    x = 115,259,505.08/12,400.80
  6. Step 6: Final answer
    x = 9,294.52

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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.