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Finding the Fourth Proportional to 8,073.76, 12,110.30 and 2,809.98

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Solution

The fourth proportional to 8,073.76, 12,110.30 and 2,809.98 is: 4,214.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,073.76 : 12,110.30 = 2,809.98 : x
  2. Step 2: Convert to fraction form
    8,073.76/12,110.30 = 2,809.98/x
  3. Step 3: Cross multiply
    8,073.76x = 12,110.30 × 2,809.98
  4. Step 4: Simplify right side
    8,073.76x = 34,029,700.79
  5. Step 5: Solve for x
    x = 34,029,700.79/8,073.76
  6. Step 6: Final answer
    x = 4,214.85

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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.