Home / 14,491.71-21,737.68-5,131.77

Finding the Fourth Proportional to 14,491.71, 21,737.68 and 5,131.77

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Solution

The fourth proportional to 14,491.71, 21,737.68 and 5,131.77 is: 7,697.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,491.71 : 21,737.68 = 5,131.77 : x
  2. Step 2: Convert to fraction form
    14,491.71/21,737.68 = 5,131.77/x
  3. Step 3: Cross multiply
    14,491.71x = 21,737.68 × 5,131.77
  4. Step 4: Simplify right side
    14,491.71x = 111,552,679.75
  5. Step 5: Solve for x
    x = 111,552,679.75/14,491.71
  6. Step 6: Final answer
    x = 7,697.69

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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.