Home / 14,654.12-20,221.25-8,989.79

Finding the Fourth Proportional to 14,654.12, 20,221.25 and 8,989.79

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Solution

The fourth proportional to 14,654.12, 20,221.25 and 8,989.79 is: 12,405.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,654.12 : 20,221.25 = 8,989.79 : x
  2. Step 2: Convert to fraction form
    14,654.12/20,221.25 = 8,989.79/x
  3. Step 3: Cross multiply
    14,654.12x = 20,221.25 × 8,989.79
  4. Step 4: Simplify right side
    14,654.12x = 181,784,644.98
  5. Step 5: Solve for x
    x = 181,784,644.98/14,654.12
  6. Step 6: Final answer
    x = 12,405.02

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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.