Home / 9,179.25-12,668.20-5,201.64

Finding the Fourth Proportional to 9,179.25, 12,668.20 and 5,201.64

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Solution

The fourth proportional to 9,179.25, 12,668.20 and 5,201.64 is: 7,178.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,179.25 : 12,668.20 = 5,201.64 : x
  2. Step 2: Convert to fraction form
    9,179.25/12,668.20 = 5,201.64/x
  3. Step 3: Cross multiply
    9,179.25x = 12,668.20 × 5,201.64
  4. Step 4: Simplify right side
    9,179.25x = 65,895,438.47
  5. Step 5: Solve for x
    x = 65,895,438.47/9,179.25
  6. Step 6: Final answer
    x = 7,178.74

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1.5x scale

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.