Home / 9,120.45-13,679.05-3,277.11

Finding the Fourth Proportional to 9,120.45, 13,679.05 and 3,277.11

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Solution

The fourth proportional to 9,120.45, 13,679.05 and 3,277.11 is: 4,915.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,120.45 : 13,679.05 = 3,277.11 : x
  2. Step 2: Convert to fraction form
    9,120.45/13,679.05 = 3,277.11/x
  3. Step 3: Cross multiply
    9,120.45x = 13,679.05 × 3,277.11
  4. Step 4: Simplify right side
    9,120.45x = 44,827,751.55
  5. Step 5: Solve for x
    x = 44,827,751.55/9,120.45
  6. Step 6: Final answer
    x = 4,915.08

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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.