Home / 12,388.54-18,582.81-3,623.46

Finding the Fourth Proportional to 12,388.54, 18,582.81 and 3,623.46

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Solution

The fourth proportional to 12,388.54, 18,582.81 and 3,623.46 is: 5,435.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,388.54 : 18,582.81 = 3,623.46 : x
  2. Step 2: Convert to fraction form
    12,388.54/18,582.81 = 3,623.46/x
  3. Step 3: Cross multiply
    12,388.54x = 18,582.81 × 3,623.46
  4. Step 4: Simplify right side
    12,388.54x = 67,334,068.72
  5. Step 5: Solve for x
    x = 67,334,068.72/12,388.54
  6. Step 6: Final answer
    x = 5,435.19

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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.