Home / 14,344.72-19,787.74-13,329.91

Finding the Fourth Proportional to 14,344.72, 19,787.74 and 13,329.91

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Solution

The fourth proportional to 14,344.72, 19,787.74 and 13,329.91 is: 18,387.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,344.72 : 19,787.74 = 13,329.91 : x
  2. Step 2: Convert to fraction form
    14,344.72/19,787.74 = 13,329.91/x
  3. Step 3: Cross multiply
    14,344.72x = 19,787.74 × 13,329.91
  4. Step 4: Simplify right side
    14,344.72x = 263,768,793.30
  5. Step 5: Solve for x
    x = 263,768,793.30/14,344.72
  6. Step 6: Final answer
    x = 18,387.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.