Home / 11,719.19-16,172.91-6,682.60

Finding the Fourth Proportional to 11,719.19, 16,172.91 and 6,682.60

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Solution

The fourth proportional to 11,719.19, 16,172.91 and 6,682.60 is: 9,222.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,719.19 : 16,172.91 = 6,682.60 : x
  2. Step 2: Convert to fraction form
    11,719.19/16,172.91 = 6,682.60/x
  3. Step 3: Cross multiply
    11,719.19x = 16,172.91 × 6,682.60
  4. Step 4: Simplify right side
    11,719.19x = 108,077,088.37
  5. Step 5: Solve for x
    x = 108,077,088.37/11,719.19
  6. Step 6: Final answer
    x = 9,222.23

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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.