Home / 11,719.24-16,172.16-6,685.09

Finding the Fourth Proportional to 11,719.24, 16,172.16 and 6,685.09

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Solution

The fourth proportional to 11,719.24, 16,172.16 and 6,685.09 is: 9,225.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,719.24 : 16,172.16 = 6,685.09 : x
  2. Step 2: Convert to fraction form
    11,719.24/16,172.16 = 6,685.09/x
  3. Step 3: Cross multiply
    11,719.24x = 16,172.16 × 6,685.09
  4. Step 4: Simplify right side
    11,719.24x = 108,112,345.09
  5. Step 5: Solve for x
    x = 108,112,345.09/11,719.24
  6. Step 6: Final answer
    x = 9,225.20

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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.