Home / 10,926.80-16,390.12-3,135.56

Finding the Fourth Proportional to 10,926.80, 16,390.12 and 3,135.56

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Solution

The fourth proportional to 10,926.80, 16,390.12 and 3,135.56 is: 4,703.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,926.80 : 16,390.12 = 3,135.56 : x
  2. Step 2: Convert to fraction form
    10,926.80/16,390.12 = 3,135.56/x
  3. Step 3: Cross multiply
    10,926.80x = 16,390.12 × 3,135.56
  4. Step 4: Simplify right side
    10,926.80x = 51,392,204.67
  5. Step 5: Solve for x
    x = 51,392,204.67/10,926.80
  6. Step 6: Final answer
    x = 4,703.32

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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.