Home / 8,139.12-12,210.52-2,944.99

Finding the Fourth Proportional to 8,139.12, 12,210.52 and 2,944.99

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Solution

The fourth proportional to 8,139.12, 12,210.52 and 2,944.99 is: 4,418.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,139.12 : 12,210.52 = 2,944.99 : x
  2. Step 2: Convert to fraction form
    8,139.12/12,210.52 = 2,944.99/x
  3. Step 3: Cross multiply
    8,139.12x = 12,210.52 × 2,944.99
  4. Step 4: Simplify right side
    8,139.12x = 35,959,859.29
  5. Step 5: Solve for x
    x = 35,959,859.29/8,139.12
  6. Step 6: Final answer
    x = 4,418.15

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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.