Home / 11,929.57-17,900.51-4,914.77

Finding the Fourth Proportional to 11,929.57, 17,900.51 and 4,914.77

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Solution

The fourth proportional to 11,929.57, 17,900.51 and 4,914.77 is: 7,374.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,929.57 : 17,900.51 = 4,914.77 : x
  2. Step 2: Convert to fraction form
    11,929.57/17,900.51 = 4,914.77/x
  3. Step 3: Cross multiply
    11,929.57x = 17,900.51 × 4,914.77
  4. Step 4: Simplify right side
    11,929.57x = 87,976,775.46
  5. Step 5: Solve for x
    x = 87,976,775.46/11,929.57
  6. Step 6: Final answer
    x = 7,374.68

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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.