Home / 14,786.42-20,400.38-9,753.15

Finding the Fourth Proportional to 14,786.42, 20,400.38 and 9,753.15

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Solution

The fourth proportional to 14,786.42, 20,400.38 and 9,753.15 is: 13,456.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,786.42 : 20,400.38 = 9,753.15 : x
  2. Step 2: Convert to fraction form
    14,786.42/20,400.38 = 9,753.15/x
  3. Step 3: Cross multiply
    14,786.42x = 20,400.38 × 9,753.15
  4. Step 4: Simplify right side
    14,786.42x = 198,967,917.43
  5. Step 5: Solve for x
    x = 198,967,917.43/14,786.42
  6. Step 6: Final answer
    x = 13,456.12

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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.