Home / 14,390.16-19,857.72-8,103

Finding the Fourth Proportional to 14,390.16, 19,857.72 and 8,103

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Solution

The fourth proportional to 14,390.16, 19,857.72 and 8,103 is: 11,181.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,390.16 : 19,857.72 = 8,103 : x
  2. Step 2: Convert to fraction form
    14,390.16/19,857.72 = 8,103/x
  3. Step 3: Cross multiply
    14,390.16x = 19,857.72 × 8,103
  4. Step 4: Simplify right side
    14,390.16x = 160,907,105.16
  5. Step 5: Solve for x
    x = 160,907,105.16/14,390.16
  6. Step 6: Final answer
    x = 11,181.75

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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.