Home / 15,676.05-21,632.94-8,961.81

Finding the Fourth Proportional to 15,676.05, 21,632.94 and 8,961.81

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Solution

The fourth proportional to 15,676.05, 21,632.94 and 8,961.81 is: 12,367.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,676.05 : 21,632.94 = 8,961.81 : x
  2. Step 2: Convert to fraction form
    15,676.05/21,632.94 = 8,961.81/x
  3. Step 3: Cross multiply
    15,676.05x = 21,632.94 × 8,961.81
  4. Step 4: Simplify right side
    15,676.05x = 193,870,298.02
  5. Step 5: Solve for x
    x = 193,870,298.02/15,676.05
  6. Step 6: Final answer
    x = 12,367.29

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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.