Home / 12,772.29-19,157.85-3,412.11

Finding the Fourth Proportional to 12,772.29, 19,157.85 and 3,412.11

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Solution

The fourth proportional to 12,772.29, 19,157.85 and 3,412.11 is: 5,118.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,772.29 : 19,157.85 = 3,412.11 : x
  2. Step 2: Convert to fraction form
    12,772.29/19,157.85 = 3,412.11/x
  3. Step 3: Cross multiply
    12,772.29x = 19,157.85 × 3,412.11
  4. Step 4: Simplify right side
    12,772.29x = 65,368,691.56
  5. Step 5: Solve for x
    x = 65,368,691.56/12,772.29
  6. Step 6: Final answer
    x = 5,118.01

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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.