Home / 13,953.47-20,932.29-4,091.58

Finding the Fourth Proportional to 13,953.47, 20,932.29 and 4,091.58

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Solution

The fourth proportional to 13,953.47, 20,932.29 and 4,091.58 is: 6,137.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,953.47 : 20,932.29 = 4,091.58 : x
  2. Step 2: Convert to fraction form
    13,953.47/20,932.29 = 4,091.58/x
  3. Step 3: Cross multiply
    13,953.47x = 20,932.29 × 4,091.58
  4. Step 4: Simplify right side
    13,953.47x = 85,646,139.12
  5. Step 5: Solve for x
    x = 85,646,139.12/13,953.47
  6. Step 6: Final answer
    x = 6,137.98

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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.