Home / 12,304.29-18,458.97-3,986.40

Finding the Fourth Proportional to 12,304.29, 18,458.97 and 3,986.40

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Solution

The fourth proportional to 12,304.29, 18,458.97 and 3,986.40 is: 5,980.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,304.29 : 18,458.97 = 3,986.40 : x
  2. Step 2: Convert to fraction form
    12,304.29/18,458.97 = 3,986.40/x
  3. Step 3: Cross multiply
    12,304.29x = 18,458.97 × 3,986.40
  4. Step 4: Simplify right side
    12,304.29x = 73,584,838.01
  5. Step 5: Solve for x
    x = 73,584,838.01/12,304.29
  6. Step 6: Final answer
    x = 5,980.42

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1.5x scale

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.