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Finding the Fourth Proportional to 8,498.80, 12,744.60 and 4,117.60

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Solution

The fourth proportional to 8,498.80, 12,744.60 and 4,117.60 is: 6,174.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,498.80 : 12,744.60 = 4,117.60 : x
  2. Step 2: Convert to fraction form
    8,498.80/12,744.60 = 4,117.60/x
  3. Step 3: Cross multiply
    8,498.80x = 12,744.60 × 4,117.60
  4. Step 4: Simplify right side
    8,498.80x = 52,477,164.96
  5. Step 5: Solve for x
    x = 52,477,164.96/8,498.80
  6. Step 6: Final answer
    x = 6,174.66

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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.