Home / 13,614.45-18,787.23-9,137.58

Finding the Fourth Proportional to 13,614.45, 18,787.23 and 9,137.58

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Solution

The fourth proportional to 13,614.45, 18,787.23 and 9,137.58 is: 12,609.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,614.45 : 18,787.23 = 9,137.58 : x
  2. Step 2: Convert to fraction form
    13,614.45/18,787.23 = 9,137.58/x
  3. Step 3: Cross multiply
    13,614.45x = 18,787.23 × 9,137.58
  4. Step 4: Simplify right side
    13,614.45x = 171,669,817.10
  5. Step 5: Solve for x
    x = 171,669,817.10/13,614.45
  6. Step 6: Final answer
    x = 12,609.38

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1.5x scale

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.