Home / 18,296.26-25,248.96-9,912.76

Finding the Fourth Proportional to 18,296.26, 25,248.96 and 9,912.76

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Solution

The fourth proportional to 18,296.26, 25,248.96 and 9,912.76 is: 13,679.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,296.26 : 25,248.96 = 9,912.76 : x
  2. Step 2: Convert to fraction form
    18,296.26/25,248.96 = 9,912.76/x
  3. Step 3: Cross multiply
    18,296.26x = 25,248.96 × 9,912.76
  4. Step 4: Simplify right side
    18,296.26x = 250,286,880.73
  5. Step 5: Solve for x
    x = 250,286,880.73/18,296.26
  6. Step 6: Final answer
    x = 13,679.67

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Half scale
Find fourth proportional to 36,592.52, 50,497.92 and 19,825.52
Double scale
Find fourth proportional to 18,297.26, 25,250.34 and 9,913.76
Similar ratio
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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.