Home / 16,939.60-23,362.20-13,396.66

Finding the Fourth Proportional to 16,939.60, 23,362.20 and 13,396.66

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Solution

The fourth proportional to 16,939.60, 23,362.20 and 13,396.66 is: 18,475.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,939.60 : 23,362.20 = 13,396.66 : x
  2. Step 2: Convert to fraction form
    16,939.60/23,362.20 = 13,396.66/x
  3. Step 3: Cross multiply
    16,939.60x = 23,362.20 × 13,396.66
  4. Step 4: Simplify right side
    16,939.60x = 312,975,450.25
  5. Step 5: Solve for x
    x = 312,975,450.25/16,939.60
  6. Step 6: Final answer
    x = 18,475.96

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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.