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Finding the Fourth Proportional to 8,148.80, 12,220.10 and 3,471.02

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Solution

The fourth proportional to 8,148.80, 12,220.10 and 3,471.02 is: 5,205.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,148.80 : 12,220.10 = 3,471.02 : x
  2. Step 2: Convert to fraction form
    8,148.80/12,220.10 = 3,471.02/x
  3. Step 3: Cross multiply
    8,148.80x = 12,220.10 × 3,471.02
  4. Step 4: Simplify right side
    8,148.80x = 42,416,211.50
  5. Step 5: Solve for x
    x = 42,416,211.50/8,148.80
  6. Step 6: Final answer
    x = 5,205.21

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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.