Home / 8,001.15-12,002.01-2,157.90

Finding the Fourth Proportional to 8,001.15, 12,002.01 and 2,157.90

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Solution

The fourth proportional to 8,001.15, 12,002.01 and 2,157.90 is: 3,236.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,001.15 : 12,002.01 = 2,157.90 : x
  2. Step 2: Convert to fraction form
    8,001.15/12,002.01 = 2,157.90/x
  3. Step 3: Cross multiply
    8,001.15x = 12,002.01 × 2,157.90
  4. Step 4: Simplify right side
    8,001.15x = 25,899,137.38
  5. Step 5: Solve for x
    x = 25,899,137.38/8,001.15
  6. Step 6: Final answer
    x = 3,236.93

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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.