Home / 14,786.12-20,400-10,537.86

Finding the Fourth Proportional to 14,786.12, 20,400 and 10,537.86

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Solution

The fourth proportional to 14,786.12, 20,400 and 10,537.86 is: 14,538.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,786.12 : 20,400 = 10,537.86 : x
  2. Step 2: Convert to fraction form
    14,786.12/20,400 = 10,537.86/x
  3. Step 3: Cross multiply
    14,786.12x = 20,400 × 10,537.86
  4. Step 4: Simplify right side
    14,786.12x = 214,972,344
  5. Step 5: Solve for x
    x = 214,972,344/14,786.12
  6. Step 6: Final answer
    x = 14,538.79

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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.