Home / 10,821.60-16,226.14-4,240.08

Finding the Fourth Proportional to 10,821.60, 16,226.14 and 4,240.08

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Solution

The fourth proportional to 10,821.60, 16,226.14 and 4,240.08 is: 6,357.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,821.60 : 16,226.14 = 4,240.08 : x
  2. Step 2: Convert to fraction form
    10,821.60/16,226.14 = 4,240.08/x
  3. Step 3: Cross multiply
    10,821.60x = 16,226.14 × 4,240.08
  4. Step 4: Simplify right side
    10,821.60x = 68,800,131.69
  5. Step 5: Solve for x
    x = 68,800,131.69/10,821.60
  6. Step 6: Final answer
    x = 6,357.67

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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.