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Finding the Fourth Proportional to 18,549.56, 27,827.08 and 5,400.20

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Solution

The fourth proportional to 18,549.56, 27,827.08 and 5,400.20 is: 8,101.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,549.56 : 27,827.08 = 5,400.20 : x
  2. Step 2: Convert to fraction form
    18,549.56/27,827.08 = 5,400.20/x
  3. Step 3: Cross multiply
    18,549.56x = 27,827.08 × 5,400.20
  4. Step 4: Simplify right side
    18,549.56x = 150,271,797.42
  5. Step 5: Solve for x
    x = 150,271,797.42/18,549.56
  6. Step 6: Final answer
    x = 8,101.10

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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.