Home / 11,385.09-17,073.51-4,811.78

Finding the Fourth Proportional to 11,385.09, 17,073.51 and 4,811.78

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Solution

The fourth proportional to 11,385.09, 17,073.51 and 4,811.78 is: 7,215.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,385.09 : 17,073.51 = 4,811.78 : x
  2. Step 2: Convert to fraction form
    11,385.09/17,073.51 = 4,811.78/x
  3. Step 3: Cross multiply
    11,385.09x = 17,073.51 × 4,811.78
  4. Step 4: Simplify right side
    11,385.09x = 82,153,888.58
  5. Step 5: Solve for x
    x = 82,153,888.58/11,385.09
  6. Step 6: Final answer
    x = 7,215.92

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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.