Home / 12,996.60-17,935.50-7,407.48

Finding the Fourth Proportional to 12,996.60, 17,935.50 and 7,407.48

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Solution

The fourth proportional to 12,996.60, 17,935.50 and 7,407.48 is: 10,222.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,996.60 : 17,935.50 = 7,407.48 : x
  2. Step 2: Convert to fraction form
    12,996.60/17,935.50 = 7,407.48/x
  3. Step 3: Cross multiply
    12,996.60x = 17,935.50 × 7,407.48
  4. Step 4: Simplify right side
    12,996.60x = 132,856,857.54
  5. Step 5: Solve for x
    x = 132,856,857.54/12,996.60
  6. Step 6: Final answer
    x = 10,222.43

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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.