Home / 18,329.89-27,488.45-5,178.73

Finding the Fourth Proportional to 18,329.89, 27,488.45 and 5,178.73

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Solution

The fourth proportional to 18,329.89, 27,488.45 and 5,178.73 is: 7,766.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,329.89 : 27,488.45 = 5,178.73 : x
  2. Step 2: Convert to fraction form
    18,329.89/27,488.45 = 5,178.73/x
  3. Step 3: Cross multiply
    18,329.89x = 27,488.45 × 5,178.73
  4. Step 4: Simplify right side
    18,329.89x = 142,355,097.33
  5. Step 5: Solve for x
    x = 142,355,097.33/18,329.89
  6. Step 6: Final answer
    x = 7,766.28

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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.