Home / 12,768.22-19,148.07-5,371.30

Finding the Fourth Proportional to 12,768.22, 19,148.07 and 5,371.30

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Solution

The fourth proportional to 12,768.22, 19,148.07 and 5,371.30 is: 8,055.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,768.22 : 19,148.07 = 5,371.30 : x
  2. Step 2: Convert to fraction form
    12,768.22/19,148.07 = 5,371.30/x
  3. Step 3: Cross multiply
    12,768.22x = 19,148.07 × 5,371.30
  4. Step 4: Simplify right side
    12,768.22x = 102,849,932.65
  5. Step 5: Solve for x
    x = 102,849,932.65/12,768.22
  6. Step 6: Final answer
    x = 8,055.15

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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.