Home / 8,477.90-12,717.79-2,930.61

Finding the Fourth Proportional to 8,477.90, 12,717.79 and 2,930.61

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Solution

The fourth proportional to 8,477.90, 12,717.79 and 2,930.61 is: 4,396.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,477.90 : 12,717.79 = 2,930.61 : x
  2. Step 2: Convert to fraction form
    8,477.90/12,717.79 = 2,930.61/x
  3. Step 3: Cross multiply
    8,477.90x = 12,717.79 × 2,930.61
  4. Step 4: Simplify right side
    8,477.90x = 37,270,939.40
  5. Step 5: Solve for x
    x = 37,270,939.40/8,477.90
  6. Step 6: Final answer
    x = 4,396.25

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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.