Home / 14,188.22-21,282.32-6,387.92

Finding the Fourth Proportional to 14,188.22, 21,282.32 and 6,387.92

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Solution

The fourth proportional to 14,188.22, 21,282.32 and 6,387.92 is: 9,581.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,188.22 : 21,282.32 = 6,387.92 : x
  2. Step 2: Convert to fraction form
    14,188.22/21,282.32 = 6,387.92/x
  3. Step 3: Cross multiply
    14,188.22x = 21,282.32 × 6,387.92
  4. Step 4: Simplify right side
    14,188.22x = 135,949,757.57
  5. Step 5: Solve for x
    x = 135,949,757.57/14,188.22
  6. Step 6: Final answer
    x = 9,581.88

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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.