Home / 18,279.09-27,413.04-7,748.91

Finding the Fourth Proportional to 18,279.09, 27,413.04 and 7,748.91

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Solution

The fourth proportional to 18,279.09, 27,413.04 and 7,748.91 is: 11,620.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,279.09 : 27,413.04 = 7,748.91 : x
  2. Step 2: Convert to fraction form
    18,279.09/27,413.04 = 7,748.91/x
  3. Step 3: Cross multiply
    18,279.09x = 27,413.04 × 7,748.91
  4. Step 4: Simplify right side
    18,279.09x = 212,421,179.79
  5. Step 5: Solve for x
    x = 212,421,179.79/18,279.09
  6. Step 6: Final answer
    x = 11,620.99

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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.