Home / 13,576.08-18,728.92-8,261.68

Finding the Fourth Proportional to 13,576.08, 18,728.92 and 8,261.68

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Solution

The fourth proportional to 13,576.08, 18,728.92 and 8,261.68 is: 11,397.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,576.08 : 18,728.92 = 8,261.68 : x
  2. Step 2: Convert to fraction form
    13,576.08/18,728.92 = 8,261.68/x
  3. Step 3: Cross multiply
    13,576.08x = 18,728.92 × 8,261.68
  4. Step 4: Simplify right side
    13,576.08x = 154,732,343.79
  5. Step 5: Solve for x
    x = 154,732,343.79/13,576.08
  6. Step 6: Final answer
    x = 11,397.42

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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.