Home / 18,273.80-27,408.58-5,127.30

Finding the Fourth Proportional to 18,273.80, 27,408.58 and 5,127.30

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Solution

The fourth proportional to 18,273.80, 27,408.58 and 5,127.30 is: 7,690.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,273.80 : 27,408.58 = 5,127.30 : x
  2. Step 2: Convert to fraction form
    18,273.80/27,408.58 = 5,127.30/x
  3. Step 3: Cross multiply
    18,273.80x = 27,408.58 × 5,127.30
  4. Step 4: Simplify right side
    18,273.80x = 140,531,999.42
  5. Step 5: Solve for x
    x = 140,531,999.42/18,273.80
  6. Step 6: Final answer
    x = 7,690.35

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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.