Home / 12,765.64-19,143.22-4,871.03

Finding the Fourth Proportional to 12,765.64, 19,143.22 and 4,871.03

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Solution

The fourth proportional to 12,765.64, 19,143.22 and 4,871.03 is: 7,304.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,765.64 : 19,143.22 = 4,871.03 : x
  2. Step 2: Convert to fraction form
    12,765.64/19,143.22 = 4,871.03/x
  3. Step 3: Cross multiply
    12,765.64x = 19,143.22 × 4,871.03
  4. Step 4: Simplify right side
    12,765.64x = 93,247,198.92
  5. Step 5: Solve for x
    x = 93,247,198.92/12,765.64
  6. Step 6: Final answer
    x = 7,304.55

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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.