Home / 12,887.42-19,338.57-6,964.33

Finding the Fourth Proportional to 12,887.42, 19,338.57 and 6,964.33

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Solution

The fourth proportional to 12,887.42, 19,338.57 and 6,964.33 is: 10,450.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,887.42 : 19,338.57 = 6,964.33 : x
  2. Step 2: Convert to fraction form
    12,887.42/19,338.57 = 6,964.33/x
  3. Step 3: Cross multiply
    12,887.42x = 19,338.57 × 6,964.33
  4. Step 4: Simplify right side
    12,887.42x = 134,680,086.52
  5. Step 5: Solve for x
    x = 134,680,086.52/12,887.42
  6. Step 6: Final answer
    x = 10,450.51

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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.