Home / 13,953.07-20,932.71-4,091.95

Finding the Fourth Proportional to 13,953.07, 20,932.71 and 4,091.95

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Solution

The fourth proportional to 13,953.07, 20,932.71 and 4,091.95 is: 6,138.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,953.07 : 20,932.71 = 4,091.95 : x
  2. Step 2: Convert to fraction form
    13,953.07/20,932.71 = 4,091.95/x
  3. Step 3: Cross multiply
    13,953.07x = 20,932.71 × 4,091.95
  4. Step 4: Simplify right side
    13,953.07x = 85,655,602.68
  5. Step 5: Solve for x
    x = 85,655,602.68/13,953.07
  6. Step 6: Final answer
    x = 6,138.84

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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.