Home / 8,743.12-13,102.40-6,140.72

Finding the Fourth Proportional to 8,743.12, 13,102.40 and 6,140.72

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Solution

The fourth proportional to 8,743.12, 13,102.40 and 6,140.72 is: 9,202.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,743.12 : 13,102.40 = 6,140.72 : x
  2. Step 2: Convert to fraction form
    8,743.12/13,102.40 = 6,140.72/x
  3. Step 3: Cross multiply
    8,743.12x = 13,102.40 × 6,140.72
  4. Step 4: Simplify right side
    8,743.12x = 80,458,169.73
  5. Step 5: Solve for x
    x = 80,458,169.73/8,743.12
  6. Step 6: Final answer
    x = 9,202.46

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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.