Home / 8,634.24-12,948.48-2,789.28

Finding the Fourth Proportional to 8,634.24, 12,948.48 and 2,789.28

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Solution

The fourth proportional to 8,634.24, 12,948.48 and 2,789.28 is: 4,182.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,634.24 : 12,948.48 = 2,789.28 : x
  2. Step 2: Convert to fraction form
    8,634.24/12,948.48 = 2,789.28/x
  3. Step 3: Cross multiply
    8,634.24x = 12,948.48 × 2,789.28
  4. Step 4: Simplify right side
    8,634.24x = 36,116,936.29
  5. Step 5: Solve for x
    x = 36,116,936.29/8,634.24
  6. Step 6: Final answer
    x = 4,182.99

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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.