Home / 14,951.36-20,618.88-11,815.04

Finding the Fourth Proportional to 14,951.36, 20,618.88 and 11,815.04

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Solution

The fourth proportional to 14,951.36, 20,618.88 and 11,815.04 is: 16,293.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,951.36 : 20,618.88 = 11,815.04 : x
  2. Step 2: Convert to fraction form
    14,951.36/20,618.88 = 11,815.04/x
  3. Step 3: Cross multiply
    14,951.36x = 20,618.88 × 11,815.04
  4. Step 4: Simplify right side
    14,951.36x = 243,612,891.96
  5. Step 5: Solve for x
    x = 243,612,891.96/14,951.36
  6. Step 6: Final answer
    x = 16,293.69

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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.