Home / 8,068.95-12,101.75-3,138.48

Finding the Fourth Proportional to 8,068.95, 12,101.75 and 3,138.48

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Solution

The fourth proportional to 8,068.95, 12,101.75 and 3,138.48 is: 4,707.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,068.95 : 12,101.75 = 3,138.48 : x
  2. Step 2: Convert to fraction form
    8,068.95/12,101.75 = 3,138.48/x
  3. Step 3: Cross multiply
    8,068.95x = 12,101.75 × 3,138.48
  4. Step 4: Simplify right side
    8,068.95x = 37,981,100.34
  5. Step 5: Solve for x
    x = 37,981,100.34/8,068.95
  6. Step 6: Final answer
    x = 4,707.07

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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.