Home / 12,648.96-18,973.47-3,883.86

Finding the Fourth Proportional to 12,648.96, 18,973.47 and 3,883.86

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Solution

The fourth proportional to 12,648.96, 18,973.47 and 3,883.86 is: 5,825.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,648.96 : 18,973.47 = 3,883.86 : x
  2. Step 2: Convert to fraction form
    12,648.96/18,973.47 = 3,883.86/x
  3. Step 3: Cross multiply
    12,648.96x = 18,973.47 × 3,883.86
  4. Step 4: Simplify right side
    12,648.96x = 73,690,301.19
  5. Step 5: Solve for x
    x = 73,690,301.19/12,648.96
  6. Step 6: Final answer
    x = 5,825.80

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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.