Home / 12,785.31-19,150.26-6,197.71

Finding the Fourth Proportional to 12,785.31, 19,150.26 and 6,197.71

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Solution

The fourth proportional to 12,785.31, 19,150.26 and 6,197.71 is: 9,283.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,785.31 : 19,150.26 = 6,197.71 : x
  2. Step 2: Convert to fraction form
    12,785.31/19,150.26 = 6,197.71/x
  3. Step 3: Cross multiply
    12,785.31x = 19,150.26 × 6,197.71
  4. Step 4: Simplify right side
    12,785.31x = 118,687,757.90
  5. Step 5: Solve for x
    x = 118,687,757.90/12,785.31
  6. Step 6: Final answer
    x = 9,283.13

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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.