Home / 12,926.76-19,406.54-10,991.26

Finding the Fourth Proportional to 12,926.76, 19,406.54 and 10,991.26

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Solution

The fourth proportional to 12,926.76, 19,406.54 and 10,991.26 is: 16,500.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,926.76 : 19,406.54 = 10,991.26 : x
  2. Step 2: Convert to fraction form
    12,926.76/19,406.54 = 10,991.26/x
  3. Step 3: Cross multiply
    12,926.76x = 19,406.54 × 10,991.26
  4. Step 4: Simplify right side
    12,926.76x = 213,302,326.84
  5. Step 5: Solve for x
    x = 213,302,326.84/12,926.76
  6. Step 6: Final answer
    x = 16,500.83

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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.