Home / 8,429.79-12,638.44-4,043.07

Finding the Fourth Proportional to 8,429.79, 12,638.44 and 4,043.07

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Solution

The fourth proportional to 8,429.79, 12,638.44 and 4,043.07 is: 6,061.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,429.79 : 12,638.44 = 4,043.07 : x
  2. Step 2: Convert to fraction form
    8,429.79/12,638.44 = 4,043.07/x
  3. Step 3: Cross multiply
    8,429.79x = 12,638.44 × 4,043.07
  4. Step 4: Simplify right side
    8,429.79x = 51,098,097.61
  5. Step 5: Solve for x
    x = 51,098,097.61/8,429.79
  6. Step 6: Final answer
    x = 6,061.61

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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.