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Finding the Fourth Proportional to 18,203.05, 27,304.59 and 5,055.42

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Solution

The fourth proportional to 18,203.05, 27,304.59 and 5,055.42 is: 7,583.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,203.05 : 27,304.59 = 5,055.42 : x
  2. Step 2: Convert to fraction form
    18,203.05/27,304.59 = 5,055.42/x
  3. Step 3: Cross multiply
    18,203.05x = 27,304.59 × 5,055.42
  4. Step 4: Simplify right side
    18,203.05x = 138,036,145.10
  5. Step 5: Solve for x
    x = 138,036,145.10/18,203.05
  6. Step 6: Final answer
    x = 7,583.13

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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.