Home / 13,953.32-20,930.15-4,092.80

Finding the Fourth Proportional to 13,953.32, 20,930.15 and 4,092.80

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Solution

The fourth proportional to 13,953.32, 20,930.15 and 4,092.80 is: 6,139.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,953.32 : 20,930.15 = 4,092.80 : x
  2. Step 2: Convert to fraction form
    13,953.32/20,930.15 = 4,092.80/x
  3. Step 3: Cross multiply
    13,953.32x = 20,930.15 × 4,092.80
  4. Step 4: Simplify right side
    13,953.32x = 85,662,917.92
  5. Step 5: Solve for x
    x = 85,662,917.92/13,953.32
  6. Step 6: Final answer
    x = 6,139.25

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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.