Home / 13,326.66-19,986.50-3,964.16

Finding the Fourth Proportional to 13,326.66, 19,986.50 and 3,964.16

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Solution

The fourth proportional to 13,326.66, 19,986.50 and 3,964.16 is: 5,945.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,326.66 : 19,986.50 = 3,964.16 : x
  2. Step 2: Convert to fraction form
    13,326.66/19,986.50 = 3,964.16/x
  3. Step 3: Cross multiply
    13,326.66x = 19,986.50 × 3,964.16
  4. Step 4: Simplify right side
    13,326.66x = 79,229,683.84
  5. Step 5: Solve for x
    x = 79,229,683.84/13,326.66
  6. Step 6: Final answer
    x = 5,945.20

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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.