Home / 12,422.60-17,143.20-6,833.60

Finding the Fourth Proportional to 12,422.60, 17,143.20 and 6,833.60

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Solution

The fourth proportional to 12,422.60, 17,143.20 and 6,833.60 is: 9,430.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,422.60 : 17,143.20 = 6,833.60 : x
  2. Step 2: Convert to fraction form
    12,422.60/17,143.20 = 6,833.60/x
  3. Step 3: Cross multiply
    12,422.60x = 17,143.20 × 6,833.60
  4. Step 4: Simplify right side
    12,422.60x = 117,149,771.52
  5. Step 5: Solve for x
    x = 117,149,771.52/12,422.60
  6. Step 6: Final answer
    x = 9,430.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.