Home / 14,287.89-19,727.03-8,912.43

Finding the Fourth Proportional to 14,287.89, 19,727.03 and 8,912.43

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Solution

The fourth proportional to 14,287.89, 19,727.03 and 8,912.43 is: 12,305.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,287.89 : 19,727.03 = 8,912.43 : x
  2. Step 2: Convert to fraction form
    14,287.89/19,727.03 = 8,912.43/x
  3. Step 3: Cross multiply
    14,287.89x = 19,727.03 × 8,912.43
  4. Step 4: Simplify right side
    14,287.89x = 175,815,729.42
  5. Step 5: Solve for x
    x = 175,815,729.42/14,287.89
  6. Step 6: Final answer
    x = 12,305.23

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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.