Home / 13,822.86-20,685.60-11,898.30

Finding the Fourth Proportional to 13,822.86, 20,685.60 and 11,898.30

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Solution

The fourth proportional to 13,822.86, 20,685.60 and 11,898.30 is: 17,805.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,822.86 : 20,685.60 = 11,898.30 : x
  2. Step 2: Convert to fraction form
    13,822.86/20,685.60 = 11,898.30/x
  3. Step 3: Cross multiply
    13,822.86x = 20,685.60 × 11,898.30
  4. Step 4: Simplify right side
    13,822.86x = 246,123,474.48
  5. Step 5: Solve for x
    x = 246,123,474.48/13,822.86
  6. Step 6: Final answer
    x = 17,805.54

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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.