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Finding the Fourth Proportional to 12,898.98, 17,794.03 and 8,425.35

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Solution

The fourth proportional to 12,898.98, 17,794.03 and 8,425.35 is: 11,622.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,898.98 : 17,794.03 = 8,425.35 : x
  2. Step 2: Convert to fraction form
    12,898.98/17,794.03 = 8,425.35/x
  3. Step 3: Cross multiply
    12,898.98x = 17,794.03 × 8,425.35
  4. Step 4: Simplify right side
    12,898.98x = 149,920,930.66
  5. Step 5: Solve for x
    x = 149,920,930.66/12,898.98
  6. Step 6: Final answer
    x = 11,622.70

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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.