Home / 13,203-19,767.65-10,890.86

Finding the Fourth Proportional to 13,203, 19,767.65 and 10,890.86

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Solution

The fourth proportional to 13,203, 19,767.65 and 10,890.86 is: 16,305.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,203 : 19,767.65 = 10,890.86 : x
  2. Step 2: Convert to fraction form
    13,203/19,767.65 = 10,890.86/x
  3. Step 3: Cross multiply
    13,203x = 19,767.65 × 10,890.86
  4. Step 4: Simplify right side
    13,203x = 215,286,555.39
  5. Step 5: Solve for x
    x = 215,286,555.39/13,203
  6. Step 6: Final answer
    x = 16,305.88

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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.