Home / 18,258.75-25,197.21-11,189.88

Finding the Fourth Proportional to 18,258.75, 25,197.21 and 11,189.88

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Solution

The fourth proportional to 18,258.75, 25,197.21 and 11,189.88 is: 15,442.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,258.75 : 25,197.21 = 11,189.88 : x
  2. Step 2: Convert to fraction form
    18,258.75/25,197.21 = 11,189.88/x
  3. Step 3: Cross multiply
    18,258.75x = 25,197.21 × 11,189.88
  4. Step 4: Simplify right side
    18,258.75x = 281,953,756.23
  5. Step 5: Solve for x
    x = 281,953,756.23/18,258.75
  6. Step 6: Final answer
    x = 15,442.12

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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.