Home / 10,688.20-16,030.79-3,668.09

Finding the Fourth Proportional to 10,688.20, 16,030.79 and 3,668.09

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Solution

The fourth proportional to 10,688.20, 16,030.79 and 3,668.09 is: 5,501.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,688.20 : 16,030.79 = 3,668.09 : x
  2. Step 2: Convert to fraction form
    10,688.20/16,030.79 = 3,668.09/x
  3. Step 3: Cross multiply
    10,688.20x = 16,030.79 × 3,668.09
  4. Step 4: Simplify right side
    10,688.20x = 58,802,369.62
  5. Step 5: Solve for x
    x = 58,802,369.62/10,688.20
  6. Step 6: Final answer
    x = 5,501.62

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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.