Home / 12,810.25-19,218.22-3,926.81

Finding the Fourth Proportional to 12,810.25, 19,218.22 and 3,926.81

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Solution

The fourth proportional to 12,810.25, 19,218.22 and 3,926.81 is: 5,891.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,810.25 : 19,218.22 = 3,926.81 : x
  2. Step 2: Convert to fraction form
    12,810.25/19,218.22 = 3,926.81/x
  3. Step 3: Cross multiply
    12,810.25x = 19,218.22 × 3,926.81
  4. Step 4: Simplify right side
    12,810.25x = 75,466,278.84
  5. Step 5: Solve for x
    x = 75,466,278.84/12,810.25
  6. Step 6: Final answer
    x = 5,891.09

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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.