Home / 11,926.90-17,889.77-4,530.78

Finding the Fourth Proportional to 11,926.90, 17,889.77 and 4,530.78

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Solution

The fourth proportional to 11,926.90, 17,889.77 and 4,530.78 is: 6,795.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,926.90 : 17,889.77 = 4,530.78 : x
  2. Step 2: Convert to fraction form
    11,926.90/17,889.77 = 4,530.78/x
  3. Step 3: Cross multiply
    11,926.90x = 17,889.77 × 4,530.78
  4. Step 4: Simplify right side
    11,926.90x = 81,054,612.12
  5. Step 5: Solve for x
    x = 81,054,612.12/11,926.90
  6. Step 6: Final answer
    x = 6,795.95

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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.