Home / 13,346.28-18,406.68-9,996.96

Finding the Fourth Proportional to 13,346.28, 18,406.68 and 9,996.96

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Solution

The fourth proportional to 13,346.28, 18,406.68 and 9,996.96 is: 13,787.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,346.28 : 18,406.68 = 9,996.96 : x
  2. Step 2: Convert to fraction form
    13,346.28/18,406.68 = 9,996.96/x
  3. Step 3: Cross multiply
    13,346.28x = 18,406.68 × 9,996.96
  4. Step 4: Simplify right side
    13,346.28x = 184,010,843.69
  5. Step 5: Solve for x
    x = 184,010,843.69/13,346.28
  6. Step 6: Final answer
    x = 13,787.43

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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.