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Finding the Fourth Proportional to 18,275.54, 27,396.84 and 8,409.74

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Solution

The fourth proportional to 18,275.54, 27,396.84 and 8,409.74 is: 12,607.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,275.54 : 27,396.84 = 8,409.74 : x
  2. Step 2: Convert to fraction form
    18,275.54/27,396.84 = 8,409.74/x
  3. Step 3: Cross multiply
    18,275.54x = 27,396.84 × 8,409.74
  4. Step 4: Simplify right side
    18,275.54x = 230,400,301.22
  5. Step 5: Solve for x
    x = 230,400,301.22/18,275.54
  6. Step 6: Final answer
    x = 12,607.03

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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.