Home / 8,276.36-12,420.72-5,161.04

Finding the Fourth Proportional to 8,276.36, 12,420.72 and 5,161.04

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Solution

The fourth proportional to 8,276.36, 12,420.72 and 5,161.04 is: 7,745.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,276.36 : 12,420.72 = 5,161.04 : x
  2. Step 2: Convert to fraction form
    8,276.36/12,420.72 = 5,161.04/x
  3. Step 3: Cross multiply
    8,276.36x = 12,420.72 × 5,161.04
  4. Step 4: Simplify right side
    8,276.36x = 64,103,832.75
  5. Step 5: Solve for x
    x = 64,103,832.75/8,276.36
  6. Step 6: Final answer
    x = 7,745.41

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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.