Home / 8,431.66-12,645.32-2,507.01

Finding the Fourth Proportional to 8,431.66, 12,645.32 and 2,507.01

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Solution

The fourth proportional to 8,431.66, 12,645.32 and 2,507.01 is: 3,759.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,431.66 : 12,645.32 = 2,507.01 : x
  2. Step 2: Convert to fraction form
    8,431.66/12,645.32 = 2,507.01/x
  3. Step 3: Cross multiply
    8,431.66x = 12,645.32 × 2,507.01
  4. Step 4: Simplify right side
    8,431.66x = 31,701,874.20
  5. Step 5: Solve for x
    x = 31,701,874.20/8,431.66
  6. Step 6: Final answer
    x = 3,759.86

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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.