Home / 8,974.89-13,462.78-3,428.71

Finding the Fourth Proportional to 8,974.89, 13,462.78 and 3,428.71

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Solution

The fourth proportional to 8,974.89, 13,462.78 and 3,428.71 is: 5,143.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,974.89 : 13,462.78 = 3,428.71 : x
  2. Step 2: Convert to fraction form
    8,974.89/13,462.78 = 3,428.71/x
  3. Step 3: Cross multiply
    8,974.89x = 13,462.78 × 3,428.71
  4. Step 4: Simplify right side
    8,974.89x = 46,159,968.41
  5. Step 5: Solve for x
    x = 46,159,968.41/8,974.89
  6. Step 6: Final answer
    x = 5,143.24

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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.