Home / 12,860.90-19,295.40-6,287.75

Finding the Fourth Proportional to 12,860.90, 19,295.40 and 6,287.75

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Solution

The fourth proportional to 12,860.90, 19,295.40 and 6,287.75 is: 9,433.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,860.90 : 19,295.40 = 6,287.75 : x
  2. Step 2: Convert to fraction form
    12,860.90/19,295.40 = 6,287.75/x
  3. Step 3: Cross multiply
    12,860.90x = 19,295.40 × 6,287.75
  4. Step 4: Simplify right side
    12,860.90x = 121,324,651.35
  5. Step 5: Solve for x
    x = 121,324,651.35/12,860.90
  6. Step 6: Final answer
    x = 9,433.61

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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.