Home / 14,105.43-19,467.90-8,728.47

Finding the Fourth Proportional to 14,105.43, 19,467.90 and 8,728.47

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Solution

The fourth proportional to 14,105.43, 19,467.90 and 8,728.47 is: 12,046.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,105.43 : 19,467.90 = 8,728.47 : x
  2. Step 2: Convert to fraction form
    14,105.43/19,467.90 = 8,728.47/x
  3. Step 3: Cross multiply
    14,105.43x = 19,467.90 × 8,728.47
  4. Step 4: Simplify right side
    14,105.43x = 169,924,981.11
  5. Step 5: Solve for x
    x = 169,924,981.11/14,105.43
  6. Step 6: Final answer
    x = 12,046.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.