Home / 8,139.15-12,208.56-2,592.88

Finding the Fourth Proportional to 8,139.15, 12,208.56 and 2,592.88

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Solution

The fourth proportional to 8,139.15, 12,208.56 and 2,592.88 is: 3,889.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,139.15 : 12,208.56 = 2,592.88 : x
  2. Step 2: Convert to fraction form
    8,139.15/12,208.56 = 2,592.88/x
  3. Step 3: Cross multiply
    8,139.15x = 12,208.56 × 2,592.88
  4. Step 4: Simplify right side
    8,139.15x = 31,655,331.05
  5. Step 5: Solve for x
    x = 31,655,331.05/8,139.15
  6. Step 6: Final answer
    x = 3,889.27

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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.