Home / 8,272.88-12,406.08-3,077.12

Finding the Fourth Proportional to 8,272.88, 12,406.08 and 3,077.12

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Solution

The fourth proportional to 8,272.88, 12,406.08 and 3,077.12 is: 4,614.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,272.88 : 12,406.08 = 3,077.12 : x
  2. Step 2: Convert to fraction form
    8,272.88/12,406.08 = 3,077.12/x
  3. Step 3: Cross multiply
    8,272.88x = 12,406.08 × 3,077.12
  4. Step 4: Simplify right side
    8,272.88x = 38,174,996.89
  5. Step 5: Solve for x
    x = 38,174,996.89/8,272.88
  6. Step 6: Final answer
    x = 4,614.47

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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.