Home / 9,180.20-12,668.64-5,403.34

Finding the Fourth Proportional to 9,180.20, 12,668.64 and 5,403.34

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Solution

The fourth proportional to 9,180.20, 12,668.64 and 5,403.34 is: 7,456.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,180.20 : 12,668.64 = 5,403.34 : x
  2. Step 2: Convert to fraction form
    9,180.20/12,668.64 = 5,403.34/x
  3. Step 3: Cross multiply
    9,180.20x = 12,668.64 × 5,403.34
  4. Step 4: Simplify right side
    9,180.20x = 68,452,942.24
  5. Step 5: Solve for x
    x = 68,452,942.24/9,180.20
  6. Step 6: Final answer
    x = 7,456.59

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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.