Home / 14,639.90-20,198.07-8,265.74

Finding the Fourth Proportional to 14,639.90, 20,198.07 and 8,265.74

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Solution

The fourth proportional to 14,639.90, 20,198.07 and 8,265.74 is: 11,403.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,639.90 : 20,198.07 = 8,265.74 : x
  2. Step 2: Convert to fraction form
    14,639.90/20,198.07 = 8,265.74/x
  3. Step 3: Cross multiply
    14,639.90x = 20,198.07 × 8,265.74
  4. Step 4: Simplify right side
    14,639.90x = 166,951,894.13
  5. Step 5: Solve for x
    x = 166,951,894.13/14,639.90
  6. Step 6: Final answer
    x = 11,403.90

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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.