Home / 18,972.43-28,434.72-9,614.80

Finding the Fourth Proportional to 18,972.43, 28,434.72 and 9,614.80

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Solution

The fourth proportional to 18,972.43, 28,434.72 and 9,614.80 is: 14,410.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,972.43 : 28,434.72 = 9,614.80 : x
  2. Step 2: Convert to fraction form
    18,972.43/28,434.72 = 9,614.80/x
  3. Step 3: Cross multiply
    18,972.43x = 28,434.72 × 9,614.80
  4. Step 4: Simplify right side
    18,972.43x = 273,394,145.86
  5. Step 5: Solve for x
    x = 273,394,145.86/18,972.43
  6. Step 6: Final answer
    x = 14,410.08

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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.