Home / 18,688.44-28,044.18-12,133.56

Finding the Fourth Proportional to 18,688.44, 28,044.18 and 12,133.56

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Solution

The fourth proportional to 18,688.44, 28,044.18 and 12,133.56 is: 18,207.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,688.44 : 28,044.18 = 12,133.56 : x
  2. Step 2: Convert to fraction form
    18,688.44/28,044.18 = 12,133.56/x
  3. Step 3: Cross multiply
    18,688.44x = 28,044.18 × 12,133.56
  4. Step 4: Simplify right side
    18,688.44x = 340,275,740.68
  5. Step 5: Solve for x
    x = 340,275,740.68/18,688.44
  6. Step 6: Final answer
    x = 18,207.82

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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.