Home / 8,636.28-12,954.38-3,702.72

Finding the Fourth Proportional to 8,636.28, 12,954.38 and 3,702.72

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Solution

The fourth proportional to 8,636.28, 12,954.38 and 3,702.72 is: 5,554.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,636.28 : 12,954.38 = 3,702.72 : x
  2. Step 2: Convert to fraction form
    8,636.28/12,954.38 = 3,702.72/x
  3. Step 3: Cross multiply
    8,636.28x = 12,954.38 × 3,702.72
  4. Step 4: Simplify right side
    8,636.28x = 47,966,441.91
  5. Step 5: Solve for x
    x = 47,966,441.91/8,636.28
  6. Step 6: Final answer
    x = 5,554.06

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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.