Home / 16,813.62-23,208.93-13,664.34

Finding the Fourth Proportional to 16,813.62, 23,208.93 and 13,664.34

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Solution

The fourth proportional to 16,813.62, 23,208.93 and 13,664.34 is: 18,861.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,813.62 : 23,208.93 = 13,664.34 : x
  2. Step 2: Convert to fraction form
    16,813.62/23,208.93 = 13,664.34/x
  3. Step 3: Cross multiply
    16,813.62x = 23,208.93 × 13,664.34
  4. Step 4: Simplify right side
    16,813.62x = 317,134,710.56
  5. Step 5: Solve for x
    x = 317,134,710.56/16,813.62
  6. Step 6: Final answer
    x = 18,861.77

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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.