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Finding the Fourth Proportional to 17,077.80, 25,623.90 and 8,308.20

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Solution

The fourth proportional to 17,077.80, 25,623.90 and 8,308.20 is: 12,465.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,077.80 : 25,623.90 = 8,308.20 : x
  2. Step 2: Convert to fraction form
    17,077.80/25,623.90 = 8,308.20/x
  3. Step 3: Cross multiply
    17,077.80x = 25,623.90 × 8,308.20
  4. Step 4: Simplify right side
    17,077.80x = 212,888,485.98
  5. Step 5: Solve for x
    x = 212,888,485.98/17,077.80
  6. Step 6: Final answer
    x = 12,465.80

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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.