Home / 12,580.73-18,874.34-4,785.29

Finding the Fourth Proportional to 12,580.73, 18,874.34 and 4,785.29

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Solution

The fourth proportional to 12,580.73, 18,874.34 and 4,785.29 is: 7,179.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,580.73 : 18,874.34 = 4,785.29 : x
  2. Step 2: Convert to fraction form
    12,580.73/18,874.34 = 4,785.29/x
  3. Step 3: Cross multiply
    12,580.73x = 18,874.34 × 4,785.29
  4. Step 4: Simplify right side
    12,580.73x = 90,319,166.53
  5. Step 5: Solve for x
    x = 90,319,166.53/12,580.73
  6. Step 6: Final answer
    x = 7,179.17

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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.