Home / 9,119.44-12,590.30-5,981.09

Finding the Fourth Proportional to 9,119.44, 12,590.30 and 5,981.09

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Solution

The fourth proportional to 9,119.44, 12,590.30 and 5,981.09 is: 8,257.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,119.44 : 12,590.30 = 5,981.09 : x
  2. Step 2: Convert to fraction form
    9,119.44/12,590.30 = 5,981.09/x
  3. Step 3: Cross multiply
    9,119.44x = 12,590.30 × 5,981.09
  4. Step 4: Simplify right side
    9,119.44x = 75,303,717.43
  5. Step 5: Solve for x
    x = 75,303,717.43/9,119.44
  6. Step 6: Final answer
    x = 8,257.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.