Home / 18,129.69-27,194.85-4,981.97

Finding the Fourth Proportional to 18,129.69, 27,194.85 and 4,981.97

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Solution

The fourth proportional to 18,129.69, 27,194.85 and 4,981.97 is: 7,473.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,129.69 : 27,194.85 = 4,981.97 : x
  2. Step 2: Convert to fraction form
    18,129.69/27,194.85 = 4,981.97/x
  3. Step 3: Cross multiply
    18,129.69x = 27,194.85 × 4,981.97
  4. Step 4: Simplify right side
    18,129.69x = 135,483,994.84
  5. Step 5: Solve for x
    x = 135,483,994.84/18,129.69
  6. Step 6: Final answer
    x = 7,473.05

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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.