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Finding the Fourth Proportional to 9,694.40, 14,512.80 and 9,124.80

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Solution

The fourth proportional to 9,694.40, 14,512.80 and 9,124.80 is: 13,660.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,694.40 : 14,512.80 = 9,124.80 : x
  2. Step 2: Convert to fraction form
    9,694.40/14,512.80 = 9,124.80/x
  3. Step 3: Cross multiply
    9,694.40x = 14,512.80 × 9,124.80
  4. Step 4: Simplify right side
    9,694.40x = 132,426,397.44
  5. Step 5: Solve for x
    x = 132,426,397.44/9,694.40
  6. Step 6: Final answer
    x = 13,660.09

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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.