Home / 12,313.96-18,427.16-9,018.88

Finding the Fourth Proportional to 12,313.96, 18,427.16 and 9,018.88

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Solution

The fourth proportional to 12,313.96, 18,427.16 and 9,018.88 is: 13,496.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,313.96 : 18,427.16 = 9,018.88 : x
  2. Step 2: Convert to fraction form
    12,313.96/18,427.16 = 9,018.88/x
  3. Step 3: Cross multiply
    12,313.96x = 18,427.16 × 9,018.88
  4. Step 4: Simplify right side
    12,313.96x = 166,192,321.26
  5. Step 5: Solve for x
    x = 166,192,321.26/12,313.96
  6. Step 6: Final answer
    x = 13,496.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.