Home / 12,711.42-19,043.37-11,338.74

Finding the Fourth Proportional to 12,711.42, 19,043.37 and 11,338.74

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Solution

The fourth proportional to 12,711.42, 19,043.37 and 11,338.74 is: 16,986.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,711.42 : 19,043.37 = 11,338.74 : x
  2. Step 2: Convert to fraction form
    12,711.42/19,043.37 = 11,338.74/x
  3. Step 3: Cross multiply
    12,711.42x = 19,043.37 × 11,338.74
  4. Step 4: Simplify right side
    12,711.42x = 215,927,821.15
  5. Step 5: Solve for x
    x = 215,927,821.15/12,711.42
  6. Step 6: Final answer
    x = 16,986.92

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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.