Home / 14,165.87-21,228.14-12,609

Finding the Fourth Proportional to 14,165.87, 21,228.14 and 12,609

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Solution

The fourth proportional to 14,165.87, 21,228.14 and 12,609 is: 18,895.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,165.87 : 21,228.14 = 12,609 : x
  2. Step 2: Convert to fraction form
    14,165.87/21,228.14 = 12,609/x
  3. Step 3: Cross multiply
    14,165.87x = 21,228.14 × 12,609
  4. Step 4: Simplify right side
    14,165.87x = 267,665,554.22
  5. Step 5: Solve for x
    x = 267,665,554.22/14,165.87
  6. Step 6: Final answer
    x = 18,895.11

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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.