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Finding the Fourth Proportional to 18,345.54, 27,518.02 and 5,865.42

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Solution

The fourth proportional to 18,345.54, 27,518.02 and 5,865.42 is: 8,798.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,345.54 : 27,518.02 = 5,865.42 : x
  2. Step 2: Convert to fraction form
    18,345.54/27,518.02 = 5,865.42/x
  3. Step 3: Cross multiply
    18,345.54x = 27,518.02 × 5,865.42
  4. Step 4: Simplify right side
    18,345.54x = 161,404,744.87
  5. Step 5: Solve for x
    x = 161,404,744.87/18,345.54
  6. Step 6: Final answer
    x = 8,798.04

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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.