Home / 18,898.56-28,315.44-13,341.96

Finding the Fourth Proportional to 18,898.56, 28,315.44 and 13,341.96

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Solution

The fourth proportional to 18,898.56, 28,315.44 and 13,341.96 is: 19,990.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,898.56 : 28,315.44 = 13,341.96 : x
  2. Step 2: Convert to fraction form
    18,898.56/28,315.44 = 13,341.96/x
  3. Step 3: Cross multiply
    18,898.56x = 28,315.44 × 13,341.96
  4. Step 4: Simplify right side
    18,898.56x = 377,783,467.86
  5. Step 5: Solve for x
    x = 377,783,467.86/18,898.56
  6. Step 6: Final answer
    x = 19,990.07

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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.