Home / 12,963.04-19,429.92-5,162.80

Finding the Fourth Proportional to 12,963.04, 19,429.92 and 5,162.80

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Solution

The fourth proportional to 12,963.04, 19,429.92 and 5,162.80 is: 7,738.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,963.04 : 19,429.92 = 5,162.80 : x
  2. Step 2: Convert to fraction form
    12,963.04/19,429.92 = 5,162.80/x
  3. Step 3: Cross multiply
    12,963.04x = 19,429.92 × 5,162.80
  4. Step 4: Simplify right side
    12,963.04x = 100,312,790.98
  5. Step 5: Solve for x
    x = 100,312,790.98/12,963.04
  6. Step 6: Final answer
    x = 7,738.37

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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.