Home / 12,610.90-17,384.37-8,072.92

Finding the Fourth Proportional to 12,610.90, 17,384.37 and 8,072.92

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Solution

The fourth proportional to 12,610.90, 17,384.37 and 8,072.92 is: 11,128.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,610.90 : 17,384.37 = 8,072.92 : x
  2. Step 2: Convert to fraction form
    12,610.90/17,384.37 = 8,072.92/x
  3. Step 3: Cross multiply
    12,610.90x = 17,384.37 × 8,072.92
  4. Step 4: Simplify right side
    12,610.90x = 140,342,628.26
  5. Step 5: Solve for x
    x = 140,342,628.26/12,610.90
  6. Step 6: Final answer
    x = 11,128.68

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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.