Home / 12,763.53-19,145.29-3,999.13

Finding the Fourth Proportional to 12,763.53, 19,145.29 and 3,999.13

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Solution

The fourth proportional to 12,763.53, 19,145.29 and 3,999.13 is: 5,998.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,763.53 : 19,145.29 = 3,999.13 : x
  2. Step 2: Convert to fraction form
    12,763.53/19,145.29 = 3,999.13/x
  3. Step 3: Cross multiply
    12,763.53x = 19,145.29 × 3,999.13
  4. Step 4: Simplify right side
    12,763.53x = 76,564,503.60
  5. Step 5: Solve for x
    x = 76,564,503.60/12,763.53
  6. Step 6: Final answer
    x = 5,998.69

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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.