Home / 9,178.70-13,772.63-3,636.05

Finding the Fourth Proportional to 9,178.70, 13,772.63 and 3,636.05

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Solution

The fourth proportional to 9,178.70, 13,772.63 and 3,636.05 is: 5,455.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,178.70 : 13,772.63 = 3,636.05 : x
  2. Step 2: Convert to fraction form
    9,178.70/13,772.63 = 3,636.05/x
  3. Step 3: Cross multiply
    9,178.70x = 13,772.63 × 3,636.05
  4. Step 4: Simplify right side
    9,178.70x = 50,077,884.27
  5. Step 5: Solve for x
    x = 50,077,884.27/9,178.70
  6. Step 6: Final answer
    x = 5,455.88

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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.