Home / 13,169.25-18,173.57-7,580.25

Finding the Fourth Proportional to 13,169.25, 18,173.57 and 7,580.25

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Solution

The fourth proportional to 13,169.25, 18,173.57 and 7,580.25 is: 10,460.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,169.25 : 18,173.57 = 7,580.25 : x
  2. Step 2: Convert to fraction form
    13,169.25/18,173.57 = 7,580.25/x
  3. Step 3: Cross multiply
    13,169.25x = 18,173.57 × 7,580.25
  4. Step 4: Simplify right side
    13,169.25x = 137,760,166.09
  5. Step 5: Solve for x
    x = 137,760,166.09/13,169.25
  6. Step 6: Final answer
    x = 10,460.75

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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.