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Finding the Fourth Proportional to 17,210.20, 25,811.70 and 8,451.40

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Solution

The fourth proportional to 17,210.20, 25,811.70 and 8,451.40 is: 12,675.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,210.20 : 25,811.70 = 8,451.40 : x
  2. Step 2: Convert to fraction form
    17,210.20/25,811.70 = 8,451.40/x
  3. Step 3: Cross multiply
    17,210.20x = 25,811.70 × 8,451.40
  4. Step 4: Simplify right side
    17,210.20x = 218,145,001.38
  5. Step 5: Solve for x
    x = 218,145,001.38/17,210.20
  6. Step 6: Final answer
    x = 12,675.33

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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.