Home / 10,929.85-16,394.75-4,685.81

Finding the Fourth Proportional to 10,929.85, 16,394.75 and 4,685.81

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Solution

The fourth proportional to 10,929.85, 16,394.75 and 4,685.81 is: 7,028.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,929.85 : 16,394.75 = 4,685.81 : x
  2. Step 2: Convert to fraction form
    10,929.85/16,394.75 = 4,685.81/x
  3. Step 3: Cross multiply
    10,929.85x = 16,394.75 × 4,685.81
  4. Step 4: Simplify right side
    10,929.85x = 76,822,660.07
  5. Step 5: Solve for x
    x = 76,822,660.07/10,929.85
  6. Step 6: Final answer
    x = 7,028.71

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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.