Home / 18,665.44-25,750.92-12,998.68

Finding the Fourth Proportional to 18,665.44, 25,750.92 and 12,998.68

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Solution

The fourth proportional to 18,665.44, 25,750.92 and 12,998.68 is: 17,933.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,665.44 : 25,750.92 = 12,998.68 : x
  2. Step 2: Convert to fraction form
    18,665.44/25,750.92 = 12,998.68/x
  3. Step 3: Cross multiply
    18,665.44x = 25,750.92 × 12,998.68
  4. Step 4: Simplify right side
    18,665.44x = 334,727,968.79
  5. Step 5: Solve for x
    x = 334,727,968.79/18,665.44
  6. Step 6: Final answer
    x = 17,933.03

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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.