Home / 14,759.85-20,321.55-13,753.83

Finding the Fourth Proportional to 14,759.85, 20,321.55 and 13,753.83

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Solution

The fourth proportional to 14,759.85, 20,321.55 and 13,753.83 is: 18,936.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,759.85 : 20,321.55 = 13,753.83 : x
  2. Step 2: Convert to fraction form
    14,759.85/20,321.55 = 13,753.83/x
  3. Step 3: Cross multiply
    14,759.85x = 20,321.55 × 13,753.83
  4. Step 4: Simplify right side
    14,759.85x = 279,499,144.04
  5. Step 5: Solve for x
    x = 279,499,144.04/14,759.85
  6. Step 6: Final answer
    x = 18,936.45

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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.