Home / 12,518.54-18,775.34-4,621.04

Finding the Fourth Proportional to 12,518.54, 18,775.34 and 4,621.04

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Solution

The fourth proportional to 12,518.54, 18,775.34 and 4,621.04 is: 6,930.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,518.54 : 18,775.34 = 4,621.04 : x
  2. Step 2: Convert to fraction form
    12,518.54/18,775.34 = 4,621.04/x
  3. Step 3: Cross multiply
    12,518.54x = 18,775.34 × 4,621.04
  4. Step 4: Simplify right side
    12,518.54x = 86,761,597.15
  5. Step 5: Solve for x
    x = 86,761,597.15/12,518.54
  6. Step 6: Final answer
    x = 6,930.65

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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.