Home / 13,517.25-18,662.04-9,275.28

Finding the Fourth Proportional to 13,517.25, 18,662.04 and 9,275.28

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Solution

The fourth proportional to 13,517.25, 18,662.04 and 9,275.28 is: 12,805.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,517.25 : 18,662.04 = 9,275.28 : x
  2. Step 2: Convert to fraction form
    13,517.25/18,662.04 = 9,275.28/x
  3. Step 3: Cross multiply
    13,517.25x = 18,662.04 × 9,275.28
  4. Step 4: Simplify right side
    13,517.25x = 173,095,646.37
  5. Step 5: Solve for x
    x = 173,095,646.37/13,517.25
  6. Step 6: Final answer
    x = 12,805.54

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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.