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Finding the Fourth Proportional to 18,407.60, 27,625.80 and 8,548.10

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Solution

The fourth proportional to 18,407.60, 27,625.80 and 8,548.10 is: 12,828.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,407.60 : 27,625.80 = 8,548.10 : x
  2. Step 2: Convert to fraction form
    18,407.60/27,625.80 = 8,548.10/x
  3. Step 3: Cross multiply
    18,407.60x = 27,625.80 × 8,548.10
  4. Step 4: Simplify right side
    18,407.60x = 236,148,100.98
  5. Step 5: Solve for x
    x = 236,148,100.98/18,407.60
  6. Step 6: Final answer
    x = 12,828.84

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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.