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Finding the Fourth Proportional to 8,001.01, 12,000.69 and 2,158.21

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Solution

The fourth proportional to 8,001.01, 12,000.69 and 2,158.21 is: 3,237.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,001.01 : 12,000.69 = 2,158.21 : x
  2. Step 2: Convert to fraction form
    8,001.01/12,000.69 = 2,158.21/x
  3. Step 3: Cross multiply
    8,001.01x = 12,000.69 × 2,158.21
  4. Step 4: Simplify right side
    8,001.01x = 25,900,009.16
  5. Step 5: Solve for x
    x = 25,900,009.16/8,001.01
  6. Step 6: Final answer
    x = 3,237.09

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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.