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Finding the Fourth Proportional to 12,604.88, 17,390.05 and 12,585.44

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Solution

The fourth proportional to 12,604.88, 17,390.05 and 12,585.44 is: 17,363.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,604.88 : 17,390.05 = 12,585.44 : x
  2. Step 2: Convert to fraction form
    12,604.88/17,390.05 = 12,585.44/x
  3. Step 3: Cross multiply
    12,604.88x = 17,390.05 × 12,585.44
  4. Step 4: Simplify right side
    12,604.88x = 218,861,430.87
  5. Step 5: Solve for x
    x = 218,861,430.87/12,604.88
  6. Step 6: Final answer
    x = 17,363.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.