Home / 13,277.62-19,909.57-3,916.45

Finding the Fourth Proportional to 13,277.62, 19,909.57 and 3,916.45

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Solution

The fourth proportional to 13,277.62, 19,909.57 and 3,916.45 is: 5,872.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,277.62 : 19,909.57 = 3,916.45 : x
  2. Step 2: Convert to fraction form
    13,277.62/19,909.57 = 3,916.45/x
  3. Step 3: Cross multiply
    13,277.62x = 19,909.57 × 3,916.45
  4. Step 4: Simplify right side
    13,277.62x = 77,974,845.22
  5. Step 5: Solve for x
    x = 77,974,845.22/13,277.62
  6. Step 6: Final answer
    x = 5,872.65

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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.