Home / 11,719.44-16,172.80-7,003.76

Finding the Fourth Proportional to 11,719.44, 16,172.80 and 7,003.76

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Solution

The fourth proportional to 11,719.44, 16,172.80 and 7,003.76 is: 9,665.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,719.44 : 16,172.80 = 7,003.76 : x
  2. Step 2: Convert to fraction form
    11,719.44/16,172.80 = 7,003.76/x
  3. Step 3: Cross multiply
    11,719.44x = 16,172.80 × 7,003.76
  4. Step 4: Simplify right side
    11,719.44x = 113,270,311.35
  5. Step 5: Solve for x
    x = 113,270,311.35/11,719.44
  6. Step 6: Final answer
    x = 9,665.16

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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.