Home / 12,345.73-18,520.52-4,023.81

Finding the Fourth Proportional to 12,345.73, 18,520.52 and 4,023.81

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Solution

The fourth proportional to 12,345.73, 18,520.52 and 4,023.81 is: 6,036.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,345.73 : 18,520.52 = 4,023.81 : x
  2. Step 2: Convert to fraction form
    12,345.73/18,520.52 = 4,023.81/x
  3. Step 3: Cross multiply
    12,345.73x = 18,520.52 × 4,023.81
  4. Step 4: Simplify right side
    12,345.73x = 74,522,940.86
  5. Step 5: Solve for x
    x = 74,522,940.86/12,345.73
  6. Step 6: Final answer
    x = 6,036.34

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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.