Home / 12,946.22-17,867.83-7,913.36

Finding the Fourth Proportional to 12,946.22, 17,867.83 and 7,913.36

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Solution

The fourth proportional to 12,946.22, 17,867.83 and 7,913.36 is: 10,921.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,946.22 : 17,867.83 = 7,913.36 : x
  2. Step 2: Convert to fraction form
    12,946.22/17,867.83 = 7,913.36/x
  3. Step 3: Cross multiply
    12,946.22x = 17,867.83 × 7,913.36
  4. Step 4: Simplify right side
    12,946.22x = 141,394,481.87
  5. Step 5: Solve for x
    x = 141,394,481.87/12,946.22
  6. Step 6: Final answer
    x = 10,921.68

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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.