Home / 12,489.23-18,732.14-4,169.06

Finding the Fourth Proportional to 12,489.23, 18,732.14 and 4,169.06

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Solution

The fourth proportional to 12,489.23, 18,732.14 and 4,169.06 is: 6,253.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,489.23 : 18,732.14 = 4,169.06 : x
  2. Step 2: Convert to fraction form
    12,489.23/18,732.14 = 4,169.06/x
  3. Step 3: Cross multiply
    12,489.23x = 18,732.14 × 4,169.06
  4. Step 4: Simplify right side
    12,489.23x = 78,095,355.73
  5. Step 5: Solve for x
    x = 78,095,355.73/12,489.23
  6. Step 6: Final answer
    x = 6,253.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.