Home / 12,785.90-19,179.05-3,901.41

Finding the Fourth Proportional to 12,785.90, 19,179.05 and 3,901.41

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Solution

The fourth proportional to 12,785.90, 19,179.05 and 3,901.41 is: 5,852.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,785.90 : 19,179.05 = 3,901.41 : x
  2. Step 2: Convert to fraction form
    12,785.90/19,179.05 = 3,901.41/x
  3. Step 3: Cross multiply
    12,785.90x = 19,179.05 × 3,901.41
  4. Step 4: Simplify right side
    12,785.90x = 74,825,317.95
  5. Step 5: Solve for x
    x = 74,825,317.95/12,785.90
  6. Step 6: Final answer
    x = 5,852.18

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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.