Home / 13,704.12-18,915.12-9,167.04

Finding the Fourth Proportional to 13,704.12, 18,915.12 and 9,167.04

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Solution

The fourth proportional to 13,704.12, 18,915.12 and 9,167.04 is: 12,652.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,704.12 : 18,915.12 = 9,167.04 : x
  2. Step 2: Convert to fraction form
    13,704.12/18,915.12 = 9,167.04/x
  3. Step 3: Cross multiply
    13,704.12x = 18,915.12 × 9,167.04
  4. Step 4: Simplify right side
    13,704.12x = 173,395,661.64
  5. Step 5: Solve for x
    x = 173,395,661.64/13,704.12
  6. Step 6: Final answer
    x = 12,652.81

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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.