Home / 9,078.63-13,613.09-3,881.67

Finding the Fourth Proportional to 9,078.63, 13,613.09 and 3,881.67

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Solution

The fourth proportional to 9,078.63, 13,613.09 and 3,881.67 is: 5,820.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,078.63 : 13,613.09 = 3,881.67 : x
  2. Step 2: Convert to fraction form
    9,078.63/13,613.09 = 3,881.67/x
  3. Step 3: Cross multiply
    9,078.63x = 13,613.09 × 3,881.67
  4. Step 4: Simplify right side
    9,078.63x = 52,841,503.65
  5. Step 5: Solve for x
    x = 52,841,503.65/9,078.63
  6. Step 6: Final answer
    x = 5,820.43

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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.