Home / 18,133.80-27,200.01-4,985.83

Finding the Fourth Proportional to 18,133.80, 27,200.01 and 4,985.83

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Solution

The fourth proportional to 18,133.80, 27,200.01 and 4,985.83 is: 7,478.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,133.80 : 27,200.01 = 4,985.83 : x
  2. Step 2: Convert to fraction form
    18,133.80/27,200.01 = 4,985.83/x
  3. Step 3: Cross multiply
    18,133.80x = 27,200.01 × 4,985.83
  4. Step 4: Simplify right side
    18,133.80x = 135,614,625.86
  5. Step 5: Solve for x
    x = 135,614,625.86/18,133.80
  6. Step 6: Final answer
    x = 7,478.56

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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.