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Finding the Fourth Proportional to 12,730.59, 17,571.96 and 8,254.62

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Solution

The fourth proportional to 12,730.59, 17,571.96 and 8,254.62 is: 11,393.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,730.59 : 17,571.96 = 8,254.62 : x
  2. Step 2: Convert to fraction form
    12,730.59/17,571.96 = 8,254.62/x
  3. Step 3: Cross multiply
    12,730.59x = 17,571.96 × 8,254.62
  4. Step 4: Simplify right side
    12,730.59x = 145,049,852.46
  5. Step 5: Solve for x
    x = 145,049,852.46/12,730.59
  6. Step 6: Final answer
    x = 11,393.80

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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.