Home / 12,781.72-19,175.26-4,017.48

Finding the Fourth Proportional to 12,781.72, 19,175.26 and 4,017.48

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Solution

The fourth proportional to 12,781.72, 19,175.26 and 4,017.48 is: 6,027.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,781.72 : 19,175.26 = 4,017.48 : x
  2. Step 2: Convert to fraction form
    12,781.72/19,175.26 = 4,017.48/x
  3. Step 3: Cross multiply
    12,781.72x = 19,175.26 × 4,017.48
  4. Step 4: Simplify right side
    12,781.72x = 77,036,223.54
  5. Step 5: Solve for x
    x = 77,036,223.54/12,781.72
  6. Step 6: Final answer
    x = 6,027.06

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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.