Home / 15,167.32-20,930.04-8,361.12

Finding the Fourth Proportional to 15,167.32, 20,930.04 and 8,361.12

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Solution

The fourth proportional to 15,167.32, 20,930.04 and 8,361.12 is: 11,537.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,167.32 : 20,930.04 = 8,361.12 : x
  2. Step 2: Convert to fraction form
    15,167.32/20,930.04 = 8,361.12/x
  3. Step 3: Cross multiply
    15,167.32x = 20,930.04 × 8,361.12
  4. Step 4: Simplify right side
    15,167.32x = 174,998,576.04
  5. Step 5: Solve for x
    x = 174,998,576.04/15,167.32
  6. Step 6: Final answer
    x = 11,537.87

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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.