Home / 13,277.12-19,916.78-3,416.36

Finding the Fourth Proportional to 13,277.12, 19,916.78 and 3,416.36

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Solution

The fourth proportional to 13,277.12, 19,916.78 and 3,416.36 is: 5,124.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,277.12 : 19,916.78 = 3,416.36 : x
  2. Step 2: Convert to fraction form
    13,277.12/19,916.78 = 3,416.36/x
  3. Step 3: Cross multiply
    13,277.12x = 19,916.78 × 3,416.36
  4. Step 4: Simplify right side
    13,277.12x = 68,042,773.86
  5. Step 5: Solve for x
    x = 68,042,773.86/13,277.12
  6. Step 6: Final answer
    x = 5,124.82

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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.