Home / 12,785.45-19,175.43-4,018.31

Finding the Fourth Proportional to 12,785.45, 19,175.43 and 4,018.31

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Solution

The fourth proportional to 12,785.45, 19,175.43 and 4,018.31 is: 6,026.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,785.45 : 19,175.43 = 4,018.31 : x
  2. Step 2: Convert to fraction form
    12,785.45/19,175.43 = 4,018.31/x
  3. Step 3: Cross multiply
    12,785.45x = 19,175.43 × 4,018.31
  4. Step 4: Simplify right side
    12,785.45x = 77,052,813.22
  5. Step 5: Solve for x
    x = 77,052,813.22/12,785.45
  6. Step 6: Final answer
    x = 6,026.60

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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.