Home / 12,516.21-17,270.46-8,040.56

Finding the Fourth Proportional to 12,516.21, 17,270.46 and 8,040.56

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Solution

The fourth proportional to 12,516.21, 17,270.46 and 8,040.56 is: 11,094.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,516.21 : 17,270.46 = 8,040.56 : x
  2. Step 2: Convert to fraction form
    12,516.21/17,270.46 = 8,040.56/x
  3. Step 3: Cross multiply
    12,516.21x = 17,270.46 × 8,040.56
  4. Step 4: Simplify right side
    12,516.21x = 138,864,083.51
  5. Step 5: Solve for x
    x = 138,864,083.51/12,516.21
  6. Step 6: Final answer
    x = 11,094.74

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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.