Home / 12,576.06-17,357.22-8,105.40

Finding the Fourth Proportional to 12,576.06, 17,357.22 and 8,105.40

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Solution

The fourth proportional to 12,576.06, 17,357.22 and 8,105.40 is: 11,186.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,576.06 : 17,357.22 = 8,105.40 : x
  2. Step 2: Convert to fraction form
    12,576.06/17,357.22 = 8,105.40/x
  3. Step 3: Cross multiply
    12,576.06x = 17,357.22 × 8,105.40
  4. Step 4: Simplify right side
    12,576.06x = 140,687,210.99
  5. Step 5: Solve for x
    x = 140,687,210.99/12,576.06
  6. Step 6: Final answer
    x = 11,186.91

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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.