Home / 11,312.25-16,965.79-4,293.04

Finding the Fourth Proportional to 11,312.25, 16,965.79 and 4,293.04

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Solution

The fourth proportional to 11,312.25, 16,965.79 and 4,293.04 is: 6,438.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,312.25 : 16,965.79 = 4,293.04 : x
  2. Step 2: Convert to fraction form
    11,312.25/16,965.79 = 4,293.04/x
  3. Step 3: Cross multiply
    11,312.25x = 16,965.79 × 4,293.04
  4. Step 4: Simplify right side
    11,312.25x = 72,834,815.10
  5. Step 5: Solve for x
    x = 72,834,815.10/11,312.25
  6. Step 6: Final answer
    x = 6,438.58

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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.