Home / 13,953.88-20,930.98-4,093.36

Finding the Fourth Proportional to 13,953.88, 20,930.98 and 4,093.36

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Solution

The fourth proportional to 13,953.88, 20,930.98 and 4,093.36 is: 6,140.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,953.88 : 20,930.98 = 4,093.36 : x
  2. Step 2: Convert to fraction form
    13,953.88/20,930.98 = 4,093.36/x
  3. Step 3: Cross multiply
    13,953.88x = 20,930.98 × 4,093.36
  4. Step 4: Simplify right side
    13,953.88x = 85,677,931.64
  5. Step 5: Solve for x
    x = 85,677,931.64/13,953.88
  6. Step 6: Final answer
    x = 6,140.08

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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.