Home / 7,672.20-11,514.60-3,975.56

Finding the Fourth Proportional to 7,672.20, 11,514.60 and 3,975.56

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Solution

The fourth proportional to 7,672.20, 11,514.60 and 3,975.56 is: 5,966.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,672.20 : 11,514.60 = 3,975.56 : x
  2. Step 2: Convert to fraction form
    7,672.20/11,514.60 = 3,975.56/x
  3. Step 3: Cross multiply
    7,672.20x = 11,514.60 × 3,975.56
  4. Step 4: Simplify right side
    7,672.20x = 45,776,983.18
  5. Step 5: Solve for x
    x = 45,776,983.18/7,672.20
  6. Step 6: Final answer
    x = 5,966.60

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1.5x scale

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.