Home / 14,145.62-21,189.27-8,284.46

Finding the Fourth Proportional to 14,145.62, 21,189.27 and 8,284.46

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Solution

The fourth proportional to 14,145.62, 21,189.27 and 8,284.46 is: 12,409.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,145.62 : 21,189.27 = 8,284.46 : x
  2. Step 2: Convert to fraction form
    14,145.62/21,189.27 = 8,284.46/x
  3. Step 3: Cross multiply
    14,145.62x = 21,189.27 × 8,284.46
  4. Step 4: Simplify right side
    14,145.62x = 175,541,659.74
  5. Step 5: Solve for x
    x = 175,541,659.74/14,145.62
  6. Step 6: Final answer
    x = 12,409.61

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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.