Home / 13,230.69-18,258.74-7,262.75

Finding the Fourth Proportional to 13,230.69, 18,258.74 and 7,262.75

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Solution

The fourth proportional to 13,230.69, 18,258.74 and 7,262.75 is: 10,022.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,230.69 : 18,258.74 = 7,262.75 : x
  2. Step 2: Convert to fraction form
    13,230.69/18,258.74 = 7,262.75/x
  3. Step 3: Cross multiply
    13,230.69x = 18,258.74 × 7,262.75
  4. Step 4: Simplify right side
    13,230.69x = 132,608,536.33
  5. Step 5: Solve for x
    x = 132,608,536.33/13,230.69
  6. Step 6: Final answer
    x = 10,022.80

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Half scale
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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.