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Finding the Fourth Proportional to 8,108.58, 12,154.50 and 2,838.99

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Solution

The fourth proportional to 8,108.58, 12,154.50 and 2,838.99 is: 4,255.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,108.58 : 12,154.50 = 2,838.99 : x
  2. Step 2: Convert to fraction form
    8,108.58/12,154.50 = 2,838.99/x
  3. Step 3: Cross multiply
    8,108.58x = 12,154.50 × 2,838.99
  4. Step 4: Simplify right side
    8,108.58x = 34,506,503.96
  5. Step 5: Solve for x
    x = 34,506,503.96/8,108.58
  6. Step 6: Final answer
    x = 4,255.55

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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.