Home / 9,180.70-12,668.61-5,200.90

Finding the Fourth Proportional to 9,180.70, 12,668.61 and 5,200.90

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Solution

The fourth proportional to 9,180.70, 12,668.61 and 5,200.90 is: 7,176.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,180.70 : 12,668.61 = 5,200.90 : x
  2. Step 2: Convert to fraction form
    9,180.70/12,668.61 = 5,200.90/x
  3. Step 3: Cross multiply
    9,180.70x = 12,668.61 × 5,200.90
  4. Step 4: Simplify right side
    9,180.70x = 65,888,173.75
  5. Step 5: Solve for x
    x = 65,888,173.75/9,180.70
  6. Step 6: Final answer
    x = 7,176.81

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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.