Home / 10,814.50-16,221.75-2,606.50

Finding the Fourth Proportional to 10,814.50, 16,221.75 and 2,606.50

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Solution

The fourth proportional to 10,814.50, 16,221.75 and 2,606.50 is: 3,909.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,814.50 : 16,221.75 = 2,606.50 : x
  2. Step 2: Convert to fraction form
    10,814.50/16,221.75 = 2,606.50/x
  3. Step 3: Cross multiply
    10,814.50x = 16,221.75 × 2,606.50
  4. Step 4: Simplify right side
    10,814.50x = 42,281,991.38
  5. Step 5: Solve for x
    x = 42,281,991.38/10,814.50
  6. Step 6: Final answer
    x = 3,909.75

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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.