Home / 12,945.44-19,423.92-6,788

Finding the Fourth Proportional to 12,945.44, 19,423.92 and 6,788

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Solution

The fourth proportional to 12,945.44, 19,423.92 and 6,788 is: 10,185.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,945.44 : 19,423.92 = 6,788 : x
  2. Step 2: Convert to fraction form
    12,945.44/19,423.92 = 6,788/x
  3. Step 3: Cross multiply
    12,945.44x = 19,423.92 × 6,788
  4. Step 4: Simplify right side
    12,945.44x = 131,849,568.96
  5. Step 5: Solve for x
    x = 131,849,568.96/12,945.44
  6. Step 6: Final answer
    x = 10,185.02

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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.