Home / 8,107.72-12,153.48-3,174.28

Finding the Fourth Proportional to 8,107.72, 12,153.48 and 3,174.28

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Solution

The fourth proportional to 8,107.72, 12,153.48 and 3,174.28 is: 4,758.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,107.72 : 12,153.48 = 3,174.28 : x
  2. Step 2: Convert to fraction form
    8,107.72/12,153.48 = 3,174.28/x
  3. Step 3: Cross multiply
    8,107.72x = 12,153.48 × 3,174.28
  4. Step 4: Simplify right side
    8,107.72x = 38,578,548.49
  5. Step 5: Solve for x
    x = 38,578,548.49/8,107.72
  6. Step 6: Final answer
    x = 4,758.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.