Home / 12,763.41-19,145.93-3,403.28

Finding the Fourth Proportional to 12,763.41, 19,145.93 and 3,403.28

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Solution

The fourth proportional to 12,763.41, 19,145.93 and 3,403.28 is: 5,105.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,763.41 : 19,145.93 = 3,403.28 : x
  2. Step 2: Convert to fraction form
    12,763.41/19,145.93 = 3,403.28/x
  3. Step 3: Cross multiply
    12,763.41x = 19,145.93 × 3,403.28
  4. Step 4: Simplify right side
    12,763.41x = 65,158,847.90
  5. Step 5: Solve for x
    x = 65,158,847.90/12,763.41
  6. Step 6: Final answer
    x = 5,105.13

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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.