Home / 18,240.24-27,362.88-8,379.36

Finding the Fourth Proportional to 18,240.24, 27,362.88 and 8,379.36

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Solution

The fourth proportional to 18,240.24, 27,362.88 and 8,379.36 is: 12,570.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,240.24 : 27,362.88 = 8,379.36 : x
  2. Step 2: Convert to fraction form
    18,240.24/27,362.88 = 8,379.36/x
  3. Step 3: Cross multiply
    18,240.24x = 27,362.88 × 8,379.36
  4. Step 4: Simplify right side
    18,240.24x = 229,283,422.16
  5. Step 5: Solve for x
    x = 229,283,422.16/18,240.24
  6. Step 6: Final answer
    x = 12,570.20

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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.