Home / 11,009.70-15,183.59-8,647.74

Finding the Fourth Proportional to 11,009.70, 15,183.59 and 8,647.74

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Solution

The fourth proportional to 11,009.70, 15,183.59 and 8,647.74 is: 11,926.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,009.70 : 15,183.59 = 8,647.74 : x
  2. Step 2: Convert to fraction form
    11,009.70/15,183.59 = 8,647.74/x
  3. Step 3: Cross multiply
    11,009.70x = 15,183.59 × 8,647.74
  4. Step 4: Simplify right side
    11,009.70x = 131,303,695.35
  5. Step 5: Solve for x
    x = 131,303,695.35/11,009.70
  6. Step 6: Final answer
    x = 11,926.18

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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.