Home / 8,418.87-12,634.38-4,038.84

Finding the Fourth Proportional to 8,418.87, 12,634.38 and 4,038.84

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Solution

The fourth proportional to 8,418.87, 12,634.38 and 4,038.84 is: 6,061.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,418.87 : 12,634.38 = 4,038.84 : x
  2. Step 2: Convert to fraction form
    8,418.87/12,634.38 = 4,038.84/x
  3. Step 3: Cross multiply
    8,418.87x = 12,634.38 × 4,038.84
  4. Step 4: Simplify right side
    8,418.87x = 51,028,239.32
  5. Step 5: Solve for x
    x = 51,028,239.32/8,418.87
  6. Step 6: Final answer
    x = 6,061.17

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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.