Home / 13,403.71-20,078.75-8,063.94

Finding the Fourth Proportional to 13,403.71, 20,078.75 and 8,063.94

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Solution

The fourth proportional to 13,403.71, 20,078.75 and 8,063.94 is: 12,079.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,403.71 : 20,078.75 = 8,063.94 : x
  2. Step 2: Convert to fraction form
    13,403.71/20,078.75 = 8,063.94/x
  3. Step 3: Cross multiply
    13,403.71x = 20,078.75 × 8,063.94
  4. Step 4: Simplify right side
    13,403.71x = 161,913,835.28
  5. Step 5: Solve for x
    x = 161,913,835.28/13,403.71
  6. Step 6: Final answer
    x = 12,079.78

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1.5x scale

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.