Home / 18,235.24-27,352.30-7,138.80

Finding the Fourth Proportional to 18,235.24, 27,352.30 and 7,138.80

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Solution

The fourth proportional to 18,235.24, 27,352.30 and 7,138.80 is: 10,707.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,235.24 : 27,352.30 = 7,138.80 : x
  2. Step 2: Convert to fraction form
    18,235.24/27,352.30 = 7,138.80/x
  3. Step 3: Cross multiply
    18,235.24x = 27,352.30 × 7,138.80
  4. Step 4: Simplify right side
    18,235.24x = 195,262,599.24
  5. Step 5: Solve for x
    x = 195,262,599.24/18,235.24
  6. Step 6: Final answer
    x = 10,707.98

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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.