Home / 11,853.27-16,343.64-8,078.67

Finding the Fourth Proportional to 11,853.27, 16,343.64 and 8,078.67

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Solution

The fourth proportional to 11,853.27, 16,343.64 and 8,078.67 is: 11,139.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,853.27 : 16,343.64 = 8,078.67 : x
  2. Step 2: Convert to fraction form
    11,853.27/16,343.64 = 8,078.67/x
  3. Step 3: Cross multiply
    11,853.27x = 16,343.64 × 8,078.67
  4. Step 4: Simplify right side
    11,853.27x = 132,034,874.16
  5. Step 5: Solve for x
    x = 132,034,874.16/11,853.27
  6. Step 6: Final answer
    x = 11,139.11

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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.