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Finding the Fourth Proportional to 18,169.20, 27,271.20 and 9,410.40

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Solution

The fourth proportional to 18,169.20, 27,271.20 and 9,410.40 is: 14,124.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,169.20 : 27,271.20 = 9,410.40 : x
  2. Step 2: Convert to fraction form
    18,169.20/27,271.20 = 9,410.40/x
  3. Step 3: Cross multiply
    18,169.20x = 27,271.20 × 9,410.40
  4. Step 4: Simplify right side
    18,169.20x = 256,632,900.48
  5. Step 5: Solve for x
    x = 256,632,900.48/18,169.20
  6. Step 6: Final answer
    x = 14,124.61

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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.