Home / 14,179.32-21,255.21-6,781.86

Finding the Fourth Proportional to 14,179.32, 21,255.21 and 6,781.86

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Solution

The fourth proportional to 14,179.32, 21,255.21 and 6,781.86 is: 10,166.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,179.32 : 21,255.21 = 6,781.86 : x
  2. Step 2: Convert to fraction form
    14,179.32/21,255.21 = 6,781.86/x
  3. Step 3: Cross multiply
    14,179.32x = 21,255.21 × 6,781.86
  4. Step 4: Simplify right side
    14,179.32x = 144,149,858.49
  5. Step 5: Solve for x
    x = 144,149,858.49/14,179.32
  6. Step 6: Final answer
    x = 10,166.20

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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.