Home / 11,271.29-16,888.32-3,871.67

Finding the Fourth Proportional to 11,271.29, 16,888.32 and 3,871.67

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Solution

The fourth proportional to 11,271.29, 16,888.32 and 3,871.67 is: 5,801.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,271.29 : 16,888.32 = 3,871.67 : x
  2. Step 2: Convert to fraction form
    11,271.29/16,888.32 = 3,871.67/x
  3. Step 3: Cross multiply
    11,271.29x = 16,888.32 × 3,871.67
  4. Step 4: Simplify right side
    11,271.29x = 65,385,917.45
  5. Step 5: Solve for x
    x = 65,385,917.45/11,271.29
  6. Step 6: Final answer
    x = 5,801.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.