Home / 14,136.84-21,187.85-5,811.66

Finding the Fourth Proportional to 14,136.84, 21,187.85 and 5,811.66

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Solution

The fourth proportional to 14,136.84, 21,187.85 and 5,811.66 is: 8,710.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,136.84 : 21,187.85 = 5,811.66 : x
  2. Step 2: Convert to fraction form
    14,136.84/21,187.85 = 5,811.66/x
  3. Step 3: Cross multiply
    14,136.84x = 21,187.85 × 5,811.66
  4. Step 4: Simplify right side
    14,136.84x = 123,136,551.27
  5. Step 5: Solve for x
    x = 123,136,551.27/14,136.84
  6. Step 6: Final answer
    x = 8,710.33

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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.