Home / 10,826.90-16,211.03-5,621.84

Finding the Fourth Proportional to 10,826.90, 16,211.03 and 5,621.84

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Solution

The fourth proportional to 10,826.90, 16,211.03 and 5,621.84 is: 8,417.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,826.90 : 16,211.03 = 5,621.84 : x
  2. Step 2: Convert to fraction form
    10,826.90/16,211.03 = 5,621.84/x
  3. Step 3: Cross multiply
    10,826.90x = 16,211.03 × 5,621.84
  4. Step 4: Simplify right side
    10,826.90x = 91,135,707.73
  5. Step 5: Solve for x
    x = 91,135,707.73/10,826.90
  6. Step 6: Final answer
    x = 8,417.53

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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.