Home / 14,145.09-21,178.62-9,458.61

Finding the Fourth Proportional to 14,145.09, 21,178.62 and 9,458.61

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Solution

The fourth proportional to 14,145.09, 21,178.62 and 9,458.61 is: 14,161.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,145.09 : 21,178.62 = 9,458.61 : x
  2. Step 2: Convert to fraction form
    14,145.09/21,178.62 = 9,458.61/x
  3. Step 3: Cross multiply
    14,145.09x = 21,178.62 × 9,458.61
  4. Step 4: Simplify right side
    14,145.09x = 200,320,306.92
  5. Step 5: Solve for x
    x = 200,320,306.92/14,145.09
  6. Step 6: Final answer
    x = 14,161.83

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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.