Home / 18,108.04-27,163.98-7,720.84

Finding the Fourth Proportional to 18,108.04, 27,163.98 and 7,720.84

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Solution

The fourth proportional to 18,108.04, 27,163.98 and 7,720.84 is: 11,582.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,108.04 : 27,163.98 = 7,720.84 : x
  2. Step 2: Convert to fraction form
    18,108.04/27,163.98 = 7,720.84/x
  3. Step 3: Cross multiply
    18,108.04x = 27,163.98 × 7,720.84
  4. Step 4: Simplify right side
    18,108.04x = 209,728,743.34
  5. Step 5: Solve for x
    x = 209,728,743.34/18,108.04
  6. Step 6: Final answer
    x = 11,582.08

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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.