Home / 11,319.81-16,973.55-3,923.66

Finding the Fourth Proportional to 11,319.81, 16,973.55 and 3,923.66

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Solution

The fourth proportional to 11,319.81, 16,973.55 and 3,923.66 is: 5,883.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,319.81 : 16,973.55 = 3,923.66 : x
  2. Step 2: Convert to fraction form
    11,319.81/16,973.55 = 3,923.66/x
  3. Step 3: Cross multiply
    11,319.81x = 16,973.55 × 3,923.66
  4. Step 4: Simplify right side
    11,319.81x = 66,598,354.33
  5. Step 5: Solve for x
    x = 66,598,354.33/11,319.81
  6. Step 6: Final answer
    x = 5,883.35

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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.