Home / 8,070.54-12,102.62-3,139.46

Finding the Fourth Proportional to 8,070.54, 12,102.62 and 3,139.46

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Solution

The fourth proportional to 8,070.54, 12,102.62 and 3,139.46 is: 4,707.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,070.54 : 12,102.62 = 3,139.46 : x
  2. Step 2: Convert to fraction form
    8,070.54/12,102.62 = 3,139.46/x
  3. Step 3: Cross multiply
    8,070.54x = 12,102.62 × 3,139.46
  4. Step 4: Simplify right side
    8,070.54x = 37,995,660.56
  5. Step 5: Solve for x
    x = 37,995,660.56/8,070.54
  6. Step 6: Final answer
    x = 4,707.95

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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.