Home / 8,057.21-12,074.47-6,406.43

Finding the Fourth Proportional to 8,057.21, 12,074.47 and 6,406.43

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Solution

The fourth proportional to 8,057.21, 12,074.47 and 6,406.43 is: 9,600.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,057.21 : 12,074.47 = 6,406.43 : x
  2. Step 2: Convert to fraction form
    8,057.21/12,074.47 = 6,406.43/x
  3. Step 3: Cross multiply
    8,057.21x = 12,074.47 × 6,406.43
  4. Step 4: Simplify right side
    8,057.21x = 77,354,170.45
  5. Step 5: Solve for x
    x = 77,354,170.45/8,057.21
  6. Step 6: Final answer
    x = 9,600.62

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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.