Home / 11,580.21-17,370.32-2,815.11

Finding the Fourth Proportional to 11,580.21, 17,370.32 and 2,815.11

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Solution

The fourth proportional to 11,580.21, 17,370.32 and 2,815.11 is: 4,222.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,580.21 : 17,370.32 = 2,815.11 : x
  2. Step 2: Convert to fraction form
    11,580.21/17,370.32 = 2,815.11/x
  3. Step 3: Cross multiply
    11,580.21x = 17,370.32 × 2,815.11
  4. Step 4: Simplify right side
    11,580.21x = 48,899,347.46
  5. Step 5: Solve for x
    x = 48,899,347.46/11,580.21
  6. Step 6: Final answer
    x = 4,222.67

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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.