Home / 15,821.96-21,829.37-10,517.67

Finding the Fourth Proportional to 15,821.96, 21,829.37 and 10,517.67

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Solution

The fourth proportional to 15,821.96, 21,829.37 and 10,517.67 is: 14,511.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,821.96 : 21,829.37 = 10,517.67 : x
  2. Step 2: Convert to fraction form
    15,821.96/21,829.37 = 10,517.67/x
  3. Step 3: Cross multiply
    15,821.96x = 21,829.37 × 10,517.67
  4. Step 4: Simplify right side
    15,821.96x = 229,594,057.38
  5. Step 5: Solve for x
    x = 229,594,057.38/15,821.96
  6. Step 6: Final answer
    x = 14,511.11

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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.