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Finding the Fourth Proportional to 8,143.00, 12,211.90 and 2,595.05

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Solution

The fourth proportional to 8,143.00, 12,211.90 and 2,595.05 is: 3,891.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,143.00 : 12,211.90 = 2,595.05 : x
  2. Step 2: Convert to fraction form
    8,143.00/12,211.90 = 2,595.05/x
  3. Step 3: Cross multiply
    8,143.00x = 12,211.90 × 2,595.05
  4. Step 4: Simplify right side
    8,143.00x = 31,690,443.61
  5. Step 5: Solve for x
    x = 31,690,443.61/8,143.00
  6. Step 6: Final answer
    x = 3,891.74

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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.