Home / 18,469.92-27,703.98-6,782.40

Finding the Fourth Proportional to 18,469.92, 27,703.98 and 6,782.40

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Solution

The fourth proportional to 18,469.92, 27,703.98 and 6,782.40 is: 10,173.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,469.92 : 27,703.98 = 6,782.40 : x
  2. Step 2: Convert to fraction form
    18,469.92/27,703.98 = 6,782.40/x
  3. Step 3: Cross multiply
    18,469.92x = 27,703.98 × 6,782.40
  4. Step 4: Simplify right side
    18,469.92x = 187,899,473.95
  5. Step 5: Solve for x
    x = 187,899,473.95/18,469.92
  6. Step 6: Final answer
    x = 10,173.27

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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.