Home / 18,427.58-25,440.60-12,150.90

Finding the Fourth Proportional to 18,427.58, 25,440.60 and 12,150.90

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Solution

The fourth proportional to 18,427.58, 25,440.60 and 12,150.90 is: 16,775.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,427.58 : 25,440.60 = 12,150.90 : x
  2. Step 2: Convert to fraction form
    18,427.58/25,440.60 = 12,150.90/x
  3. Step 3: Cross multiply
    18,427.58x = 25,440.60 × 12,150.90
  4. Step 4: Simplify right side
    18,427.58x = 309,126,186.54
  5. Step 5: Solve for x
    x = 309,126,186.54/18,427.58
  6. Step 6: Final answer
    x = 16,775.19

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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.