Home / 14,584.28-20,121.72-8,618.04

Finding the Fourth Proportional to 14,584.28, 20,121.72 and 8,618.04

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Solution

The fourth proportional to 14,584.28, 20,121.72 and 8,618.04 is: 11,890.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,584.28 : 20,121.72 = 8,618.04 : x
  2. Step 2: Convert to fraction form
    14,584.28/20,121.72 = 8,618.04/x
  3. Step 3: Cross multiply
    14,584.28x = 20,121.72 × 8,618.04
  4. Step 4: Simplify right side
    14,584.28x = 173,409,787.83
  5. Step 5: Solve for x
    x = 173,409,787.83/14,584.28
  6. Step 6: Final answer
    x = 11,890.19

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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.