Home / 6,520.76-9,756.90-3,889.68

Finding the Fourth Proportional to 6,520.76, 9,756.90 and 3,889.68

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Solution

The fourth proportional to 6,520.76, 9,756.90 and 3,889.68 is: 5,820.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,520.76 : 9,756.90 = 3,889.68 : x
  2. Step 2: Convert to fraction form
    6,520.76/9,756.90 = 3,889.68/x
  3. Step 3: Cross multiply
    6,520.76x = 9,756.90 × 3,889.68
  4. Step 4: Simplify right side
    6,520.76x = 37,951,218.79
  5. Step 5: Solve for x
    x = 37,951,218.79/6,520.76
  6. Step 6: Final answer
    x = 5,820.06

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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.