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Finding the Fourth Proportional to 12,657.35, 17,468.18 and 6,992.61

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Solution

The fourth proportional to 12,657.35, 17,468.18 and 6,992.61 is: 9,650.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,657.35 : 17,468.18 = 6,992.61 : x
  2. Step 2: Convert to fraction form
    12,657.35/17,468.18 = 6,992.61/x
  3. Step 3: Cross multiply
    12,657.35x = 17,468.18 × 6,992.61
  4. Step 4: Simplify right side
    12,657.35x = 122,148,135.19
  5. Step 5: Solve for x
    x = 122,148,135.19/12,657.35
  6. Step 6: Final answer
    x = 9,650.38

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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.