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Finding the Fourth Proportional to 18,026.84, 27,021.72 and 8,652.80

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Solution

The fourth proportional to 18,026.84, 27,021.72 and 8,652.80 is: 12,970.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,026.84 : 27,021.72 = 8,652.80 : x
  2. Step 2: Convert to fraction form
    18,026.84/27,021.72 = 8,652.80/x
  3. Step 3: Cross multiply
    18,026.84x = 27,021.72 × 8,652.80
  4. Step 4: Simplify right side
    18,026.84x = 233,813,538.82
  5. Step 5: Solve for x
    x = 233,813,538.82/18,026.84
  6. Step 6: Final answer
    x = 12,970.30

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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.